Prasanna

In this page, we are providing Water Class 6 Extra Questions and Answers Science Chapter 14 pdf download. NCERT Extra Questions for Class 6 Science Chapter 14 Water with Answers will help to score more marks in your CBSE Board Exams. https://ncertmcq.com/extra-questions-for-class-6-science/

Class 6 Science Chapter 14 Extra Questions and Answers Water

Extra Questions for Class 6 Science Chapter 14 Water with Answers Solutions 

Water Class 6 Extra Questions Very Short Answer Type

Water Class 6 Questions And Answers Question 1.
Can you name some activities where water is used for recreation?
Answer:
River rafting, swimming, water games, water park, etc.

Class 6 Science Chapter 14 Extra Questions Question 2.
Name some sources of water.
Answer:
Hand pump, tube well, river, pond, lake, ocean, etc.

Ncert Class 6 Science Chapter 14 Extra Questions Question 3.
From where do lakes and ponds get their water?
Answer:
Rains

Water Class 6 Worksheet With Answers Question 4.
Name two main processes which transfer water present on the earth into water vapour continuously.
Answer:
Evaporation and transpiration.

Water Class 6 Extra Questions And Answers Question 5.
What name is given to the process in which rainwater is made to percolate into the ground efficiently?
Answer:
Rainwater harvesting

Class 6 Science Water Extra Questions Question 6.
What is the ultimate source of water?
Answer:
Rain

Water Class 6 Extra Questions Question 7.
What are the different forms of precipitation?
Answer:
Rain, snow and dew.

Class 6 Water Extra Questions Question 8.
What will happen if there is a continuous rain?
Answer:
This results into floods.

Class 6 Science Ch 14 Extra Questions Question 9.
Name the process which is involved in the formation of dew?
Answer:
Condensation

Ncert Solutions For Class 6 Science Chapter 14 Extra Questions Question 10.
Name the condition given to the extreme dryness in an area due to lack of rains for a long period.
Answer:
Drought

Class 6 Science Chapter 14 Worksheet Question 11.
What is the main source of groundwater?
Answer:
Rainwater

Class 6 Science Chapter 14 Extra Question Answer Question 12.
List one use of water.
Answer:
Water is essential for the germination of seeds.

Extra Questions On Water Class 6 Question 13.
Name the term used for falling of water drops from sky.
Answer:
Precipitation

Class 6 Science Chapter 14 Questions And Answers Question 14.
Name the states where roof top water harvesting is used to collect water.
Answer:
Tamil Nadu and Rajasthan.

Water Class 6 Worksheet With Answers Pdf Question 15.
What is the process of changing water into vapour called?
Answer:
Vapourization

Water Class 6 Extra Questions Short Answer Type

Question 1.
What is glacier?
Answer:
A glacier is a persistent body of dense ice that is constantly moving under its own weight. The rivers get their water from the melting of these glaciers.

Question 2.
Why is water important for us?
Answer:

1. Water regulates body temperature by the process of respiration and evaporation.
2. All metabolic reactions in the body take place in aqueous medium.
3. It transports minerals and food materials in plant’s and animal’s body.

Question 3.
What is water cycle?
Answer:
Water constantly moves from the earth to the air and back again. The constant circulation of water is known as the water cycle.

Question 4.
What are the different ways by which water vapour is put into the atmosphere?
Answer:
Water in oceans, lakes and ponds get evaporated due to atmospheric heat. Factories and thermal power stations produce a lot of steam and put it into the atmosphere. Plants lose water through transpiration. Animals lose water through respiration, sweating and excretion. All this vapour accumulates in the atmosphere.

Question 5.
What is precipitation?
Answer:
When water drops come together in the air, it becomes heavy and begin to fall. Falling of water drops is called precipitation.

Question 6.
What are the two main techniques of rainwater harvesting?
Answer:
The two main techniques of rainwater harvesting are:

• Roof-top rainwater harvesting
• Rainwater harvesting from open spaces around buildings.

Question 7.
How does rainwater become saline?
Answer:
Water is a universal solvent because it dissolves a large number of substances. When rain falls, it dissolves common salts and many other substances and minerals present on the earth. The rainwater passes through different layers of earth, rocks, dissolves large amount of salt and other minerals. Thus it becomes salty.

Question 8.
Explain the roof-top rainwater harvesting.
Answer:
In this technique, the rainwater from the roof-top is collected in a storage tank with the help of pipes. Here it is filtered and then sent into a pit. The water in the pit seeps or percolates slowly into the ground to recharge the groundwater.

Question 9.
How does water cycle help in maintaining global climate?
Answer:
Water cycle plays an important role in the world climate. Ocean absorb vast quantities of heat and help in global warming. By absorbing heat, water evaporates and on condensation releases heat. This absorption and releasing of heat in the form of energy drives weather pattern in the short-term and regulate the climate for long time.

Water Class 6 Extra Questions Long Answer Type

Question 1.
Explain the process of water cycle in nature with the help of suitable diagram.
Answer:
Water constantly moves from the earth to the air and back again. The constant circulation of water is known as the water cycle. The water in seas, rivers, lakes, ponds or streams evaporates because of the heat of the sun. Plants also give out large amounts of water from their leaves. The water vapour rises up. The air higher up in the atmosphere is cooler.

This cools the water vapour and its condenses to form tiny drop of water. These drops of water together form clouds. As the clouds get cooled further, the water drops become bigger and heavier. When they become too heavy, they fall on the earth as rain and fill the sources of water like river, ponds, streams, etc.

Question 2.
List the uses of water.
Answer:
Uses of water are:

1. It is needed for drinking, bathing, washing, cleaning of vessels, toilets, flushing, etc.
2. Our body contains about 70% of water. Hence, water is essential for our life.
3. Water helps animals and plants to keep themselves cool.
4. Water is required for irrigation.
5. Water is used to generate electricity.
6. Water is used for recreational activity.
7. Water is habitat of many aquatic plants and animals.

Question 3.
Explain about the sources of water.
Answer:
Sources of water can be classified as:

• Surface-water: Rivers, lakes, ponds, streams, oceans, etc., are surface water which is continually replenished by rainwater runoff and melting of glaciers. Most of the human activities, like drinking, washing, farming, etc., rely on freshwater supply. Two-third of Earth’s surface is covered with oceans and seas. Water from these sources are not fit for drinking or any other human activities. Surface water act as natural habitat for many plants and animals.

• Groundwater: Water present beneath Earth’s surface in soil pore spaces and in fractures of rock formations. It is stored there and moves slowly through geologic formation of soil, sand and rocks called aquifers. Groundwater is mainly replenished through seepage of rainwater and surface water.

• Rain: Rain is liquid water in form of droplets that have condensed from the atmospheric water vapour and then precipitated, i.e., become heavy enough to fall under gravity.

• Glaciers and snow: Glacier is a persistent body of dense ice that is constantly moving under its own weight. It forms where the accumulation of snow exceeds its melting. Glacial ice is the largest reservoir of freshwater on Earth.

Question 4.
What is drought? When does drought occur?
Answer:
Drought is a long period without rains leading to severe shortage of water in the region.
The soil continues to lose water by evaporation and transpiration. The water lost by soil is usually made up by rains. If, however, it does rain at all or the rainfall is very low for a long period, the loss of water from the soil is not made up and hence the soil becomes dry.

Due to lack of rains, the water level in the lakes and ponds also goes down and some of them may even dry up completely. In the absence of rains, no water seeps into the ground and hence the level of groundwater in wells, etc., falls drastically. Due to this groundwater also becomes scarce. In this way, a prolonged period of no rains or very low rains causes all around shortage of water leading to drought.

Question 5.
How is rain useful to us?
Answer:
Rainwater is useful to us in the following ways: ,

1. Rains bring relief by cooling the environment after hot summer days.
2. The sowing of many crops depends on the arrival of rains during monsoon.
3. Rains provide water in the rivers and dams of hydroelectric power plants.
4. Rains fill the lakes and ponds which acts as source of water.
5. Rains are also responsible for recharging the groundwater and thus maintaining water table.

Water Class 6 Extra Questions HOTS

Question 1.
What are the factors affecting rate of evaporation?
Answer:
(a) Temperature: Higher is the temperature higher will be the rate of evaporation.
(b) Wind velocity: Higher is the wind velocity higher will be the rate of evaporation.
(c) Surface area: Larger is the surface area, i.e., exposed area, larger will be the rate of evaporation.
(d) Humidity: Humidity is the presence of moisture in air. Higher is the humidity, less will be the the rate of evaporation.

Question 2.
How does water kept under the shade of a tree also gets evaporated?
Answer:
Air around us gets heated from sunlight. This warm air provides heat for evaporation of water kept in
the shade.

Question 3.
What will happen if we are lost in a sea and drink lot of sea water to quench our thirst?
Answer:
The sea water is highly saline. Drinking this water will cause diarrhoea and loss of too much water from our body through frequent urination. Thus, will cause dehydration and ultimately death.

Question 4.
In what ways does water serves to sustain life?
Answer:
Water controls various biological processes like, transpiration, ingestion, excretion, digestion, etc. Moreover 70% of our body weight comprises of water.

Question 5.
Dissolve two spoons of common salt in half a cup of water. Now, if you want to get the salt back, what will you do?
Answer:
To get the salt back from its solution, the solution is heated in a container till all the water gets evaporated. The white powdery substance that is retained back is the salt

Water Class 6 Extra Questions Value Based (VBQs)

Question 1.
On a summer vacation, Ria went to her village to spent her holidays. After staying there for some days she realised the problem of shortage of water faced by the villagers. She along with her father went to the office of water supply department of her village and conveyed them the problem of water shortage.

The officer of water supply department assured Ria and her father that they will do something to overcome this shortage but the villagers must also adopt water conservation practices to use water judiciously. Ria thought to make villagers aware of water conservation practices with some interesting play so that they could understand its importance.
(a) Where did Ria went in her summer vacation?
(b) What did she observed there?
(c) What do mean by water conservation?
(d) What practices could help in conserving water?
(e) What values of Ria is shown here?

Answer:
(a) Ria went to her village in summer vacation.
(b) She observed water shortage there.
(c) Water conservation refers to strategies and activities made to manage fresh water as a sustainable resource to meet current and future human demand.
(d) (i) Use water judiciously.
(ii) Use water from washing machine, bathing and moping in watering plants or flushing toilets.
(iii) Check leaking pipes and get it’repaired.
(iv) Use high-efficiency toilets that use less water in a flush.
(v) Water the plants at night to reduce loss of water due to evaporation.
(e) Ria is an intelligent, responsible, understanding, sensible and innovative girl.

Question 2.
Whenever Sajia returns from school she empties her water bottle in the potted plant instead of throwing it in the sink. She always keep her eyes on her housemaid that the water after mopping the house must be used for watering the plants in the garden.
(a) Can you suggest any other use of the water left after mopping?
(b) What is the function of water in plants?
(c) What values of Sajia is shown here?
Answer:
(a) We can use the water after mopping in flushing the toilets.
(b) Water in plants help in transportation, maintaining turgidity, photosynthesis and cooling through transpiration.
(c) Sajia is eco-friendly, responsible and intelligent girl.

In this page, we are providing Garbage In Garbage Out Class 6 Extra Questions and Answers Science Chapter 16 pdf download. NCERT Extra Questions for Class 6 Science Chapter 16 Garbage In Garbage Out with Answers will help to score more marks in your CBSE Board Exams. https://ncertmcq.com/extra-questions-for-class-6-science/

Class 6 Science Chapter 16 Extra Questions and Answers Garbage in Garbage Out

Extra Questions for Class 6 Science Chapter 16 Garbage in Garbage Out with Answers Solutions

Garbage in Garbage Out Class 6 Extra Questions Very Short Answer Type

Class 6 Science Chapter 16 Extra Questions Question 1.
What is garbage?
Answer:
Waste materials or rubbish, specially used household wastes are called garbage.

Garbage In Garbage Out Class 6 Extra Questions Answers Question 2.
Name the manure made from kitchen wastes.
Answer:
Compost

Garbage In, Garbage Out Class 6 Worksheets With Answers Question 3.
What are the sources of waste?
Answer:
Sources of waste are domestic, agricultural and industrial.

Garbage In, Garbage Out Class 6 Extra Questions Answers Question 4.
Name some materials that can be reused.
Answer:
Plastic, metal and glass.

Class 6 Science Chapter 16 Extra Question Answer Question 5.
What type of garbage is collected in green bins?
Answer:
Biodegradable garbage like kitchen, plant and animal wastes.

Garbage In Garbage Out Extra Questions Question 6.
What is composting?
Answer:
Rotting and conversion of biodegradable materials into manure is called composting.

Garbage In Garbage Out Class 6 Worksheets With Answers Question 7.
What is waste?
Answer:
Unwanted or unusable remains or by-products of materials or food is known as waste.

Garbage In Garbage Out Class 6 Extra Questions Question 8.
Name some materials that cannot be disposed of easily.
Answer:
Plastic products, polythene, glass, etc.

Garbage In Garbage Out Class 6 Questions Answers Question 9.
What is a dustbin?
Answer:
The container in which the waste materials are collected is called a dustbin.

Ncert Class 6 Science Chapter 16 Extra Questions Question 10.
What type of waste is collected in blue bin?
Answer:
Non-biodegradable materials bke plastics, metals and glass are collected in a blue bin.

Garbage In Garbage Out Class 6 Question 11.
What is vermicomposting?
Answer:
The process of making compost with the help of redworms is called vermicomposting.

Class 6 Science Ch 16 Extra Questions Question 12.
What is recycling?
Answer:
The process of recovery and reprocessing of some materials to get new products is called recycling.

Garbage In Garbage Out Question Answer Question 13.
How waste are classified on the basis of degradability?
Answer:
Biodegradable and non-biodegradable.

Garbage In Garbage Out Class 6 Questions And Answers Question 14.
What type of waste is generated from agricultural activities?
Answer:
Husk, bags, fertilizers, rotted plant products, livestock waste, etc.

Garbage in Garbage Out Class 6 Extra Questions Short Answer Type

Question 1.
What are the two main types of wastes based on their degradability?
Answer:
There are mainly two types of wastes:

• Biodegradable wastes, such as kitchen and other plant and animal wastes, which can be degraded by the action of organisms.
• Non-biodegradable wastes, like plastics, metals and glass, which cannot be degraded by the organisms.

Question 2.
How many types of bins are provided by the government for collecting garbage?
Answer:
The government provides two types of bins for collecting garbage. They are:

• Blue bins: It is to collect non-biodegradable wastes like plastic, metal and glass wastes.
• Green bins: It is to collect biodegradable wastes like vegetable and fruit peels, tea leaves, etc.

Question 3.
What is vermicomposting? How is vermicompost useful as compared to chemical fertilizer?
Answer:
The process of making compost with the help of redworms is called vermicomposting. Vermicompost is less expensive, high yielding crops and beneficial for soil health as compared to chemical fertilizers.

Question 4.
Why should we not use wastes that may contain salt, pickles, oil, vinegar and milk preparations as food for redworms in vermicomposting pit?
Answer:
We should not use wastes that may contain salt, pickles, oil, vinegar and milk products as food for redworms because these substances attract disease-causing small organisms in pit which may harm redworms ultimately hindering the preparation of vermicompost.

Question 5.
We should not burn or heat plastics, why?
Answer:
All kind of plastics give out harmful gases, upon heating and burning. These gases cause many health problems, including cancer, asthma, etc., which sometimes may cause death.

Question 6.
What can we do to minimise overuse of plastics?
Answer:
We should take following steps to minimise overuse of plastics:

1. We should avoid using plastic bags to store eatables.
2. We should not throw plastic bags here and there, after use.
3. We should never burn plastic bags and other plastic items.
4. We should not put garbage in plastic bags and throw it away.

Question 7.
Why should we not throw garbage in plastic bags?
Answer:
We should not throw garbage in plastic bags because when stray animals looking for food in these bags, usually knotted, are unable to reach the food and they end up eating the whole plastic bag. Sometimes, they die due to this. The plastic bags thrown carelessly on roads and other places get into drains and the sewer system. As a result, drains get choked and water spills on the roads which might even create a flood like situation during heavy rain.

Question 8.
How is compost prepared from kitchen wastes?
Answer:
The kitchen wastes generally include vegetable and fruit peels, egg shells, waste food etc., which are completely biodegradable. We put these waste into a pit and cover them with soil. After some days, we observe that they are completely degraded. Take them out of the pit and mix it in the soil where you grow your favourite plants. The final form of the wastes mixed with soil is called compost.

Garbage in Garbage Out Class 6 Extra Questions Long Answer Type

Question 1.
What is a garbage? Explain with examples. What will happen if garbage is not removed from our homes and surroundings regularly?
Answer:
Waste materials or rubbish that include refuse, domestic wastes, used plastic items and wrapping materials are called garbage. Every house produces a lot of garbage daily. Garbage is produced also by offices, shops, schools, etc., every day. Kitchen wastes include vegetables and fruit peels, egg shells, waste food or left over food, tea leaves, plastic and polythene bags or tins, waste paper, etc.

If these garbages are not removed, our homes and surroundings will become dirty. Some of the garbage give out a foul smell after rotting. The rotting garbage becomes a breeding place for cockroaches, flies and mosquitoes which spread many fatal diseases.

Question 2.
What are the various methods of garbage disposal? Describe the landfill method.
Answer:
There are different methods of disposal of garbage depending on the nature of garbage. Some of the effective measures are:

1. Composting
2. Vermicomposting
3. Recycling
4. Reuse
5. Landfill

Landfill is one of the important and effective measures of garbage disposal. The method is generally adopted in cities/town. Landfill is a low-lying area where the garbage from the cities or towns are collected. It generally outside the city. The non-useful part of garbage which cannot be turned into compost or cannot be recycled or reused is disposed off in a landfill. People throw garbage in the dustbins or at a place meant for this. These garbage is collected by trucks or tractors of the municipal corporation and take it to the landfill areas.

Wastes dumped in landfill is compacted everyday with the bulldozers and then filled with a layer of soil prior to waste placement of next day. This way when the landfill is completely filled, it is turned into a park or a playground.

Question 3.
What are the uses and harms of plastic?
Answer:
Plastics are both useful and harmful.
Its uses are as follows:

1. It is used as container to store edible foods.
2. Goods packed in plastic packs are easily portable, i.e., can be carried anywhere easily.
3. Plastic can be recycled.
4. Plastics are unreactive. So, plastic bottles are used to pack chemicals.
5. Plastic packs or containers are cheap, light weighted and durable.

Its demerits or harm are as follows:

1. On heating or burning, plastic emit harmful gases which cause many diseases including cancer.
2. The plastic bags thrown here and there are swallowed by animals searching for food inside them, which sometimes causes their death.
3. Plastic bags and polythene thrown on roads get into the drains and block the sewer system. Sometimes making the drain choked. During heavy rain, it creates flood-like situation.

Question 4.
What is vermicomposting? Mention the steps for preparing vermicompost.
Answer:
Process of conversion of kitchen wastes and agricultural wastes or biodegradable wastes using redworms is known as vermicomposting. The product so obtained by vermicomposting is known as vermicompost. Vermicompost is an excellent, nutrient-rich organic fertiliser.

For preparing vermicompost, spread a net at the bottom of pit or a box. Add 1-2 cm thick layer of sand and then spread biodegradable wastes like vegetable and fruit peels, green leaves, husk, etc., and sprinkle some water to make the layer wet.

Now buy some redworms and put them into the pit and cover them with gunny bags. Observe the content after 3-4 weeks. If it doesn’t smell bad and there is a loose soil-like material then the process of vermicomposting is complete. Sieve this content and sun dry it.

Question 5.
Excessive use of plastics are harmful. What measure can be adopted to reduce excessive use of plastics?
Answer:
The measures we can adopt to minimise overuse of plastics are:

1. We should try to make minimum use of plastic bags. We must reuse the bags whenever, it is possible to do so.
2. We should not use plastic bags to store eatables.
3. We can insist shopkeepers to use paper bags. We should carry cloth or jute bags while going to market for shopping.
4. We should never throw plastic bags here and there or on roads after use.
5. We should never bum plastics.
6. We should not put garbage in plastic bags and throw it away.
7. We should aware people of using proper practices for disposing plastic bags.

Question 6.
What can we do to minimise garbage generation? ‘
Answer:
We can take following steps to reduce garbage generation.

1. We can adopt the method of vermicomposting at home and deal with our kitchen waste carefully.
2. We should recycle paper, old books, metal cans, glass bottles, etc., by selling these items to kawadiwalas.
3. We should use both sides of paper to write. We should use a slate for rough work.
4. As far as possible, we should make our family, friends and others aware of the garbage hazards and to follow proper practices for disposing different kinds of wastes.
5. In a nutshell, we must bear in our mind and think about that-more garbage we generate, more difficult it will be to get over this menace.

Garbage in Garbage Out Class 6 Extra Questions HOTS

Question 1.
Write one word for the following statements:
(a) Contents of the waste bins
(b) Greeting cards made of waste paper
(c) Redworms converting certain waste into manures
Answer:
(a) Garbage
(b) Paper mache
(c) Vermicomposting

Question 2.
To what use will you put these garbage and how?
(a) Piles of straw after harvesting
(b) Rotting smelly garbage
(c) Metal cans
(d) Non-recyclable nappies, pickles, etc.
Answer:
(a) Convert into compost and use as manure.
(b) Convert into compost and use as manure.
(c) Give for recycling or reuse it.
(d) Throw in landfill as they can’t be either use for composting or recycling.

Question 3.
Why do earthworms are called farmer’s Mend?
Answer:
Earthworms are called farmer’s Mend because of the services provide by them in increasing and improving soil fertility, texture and moisture holding capacity which consequently benefits the plant. They decompose the organic matter into manure and improve the aeration of soil as they dwell in.

Question 4.
Most of the time we observe that rag pickers suffer from diseases. Why?
Answer:
Rag pickers work barefoot and without gloves in an unhygienic environment full of contaminated materials. Their entire workplace is actually a breeding ground of mosquitoes which carry various infectious diseases with them. So they often suffer from diseases.

Question 5.
Write merits and demerits of landfill.
Answer:
The merits of landfills include low operating costs and the ability to dispose of large amount of wastes. Demerits include possible water contamination and emission of greenhouse gases.

Garbage in Garbage Out Class 6 Extra Questions Value Based (VBQs)

Question 1.
Anandi thought of cleaning her room. While cleaning she found many of her old things and toys in good condition. She got an idea that beside throwing these things she can give these to an orphanage where children of her age can use these.
(a) What is waste?
(b) Which is better-reuse or recycle? Why?
(c) Which of the method of 3R’s is been used by Anandi here?
(d) What values of Anandi is shown here?
Answer:
(a) Things that are no longer useful or wanted and discarded are known as waste.
(b) Reuse is the better method of waste management than recycle, because reuse needs negligible energy as compared to recycle.
(c) Anandi by giving her belongings to orphanage is using the method of reuse amongst the 3R’s.
(d) Anandi is environment concern, sensible, responsible and intelligent girl.

Question 2.
Rishabh and Rishikesh both are best friends. Rishabh is very particular in segregating the waste generated in his house. He makes compost out of his kitchen waste and use this compost in manuring his potted plants. Rishikesh do not bother of segregating his household waste and even throws wrappers and plastics in the roads.
(a) Out of the 3R’s which one is suitable for plastics?
(b) What are the effects of plastic on the environment?
(c) Compare Rishabh’s and Rishikesh’s attitude towards environment.
(d) What value of Rishabh is shown here?
Answer:
(a) We must minimise the use of plastics so ‘reduce’ is the best way for checking waste generation.
(b) Plastics are non-biodegradable waste. Excessive use of plastics and their improper disposal is causing environmental degradation. Plastics even can’t be burnt because of the toxic gases released by them. Most of the plastics are non-recyclable also.
(c) Rishabh is eco-friendly but Rishikesh is not eco-friendly.
(d) Rishabh is intelligent, hardworking, sensible to environmental degradation and eco-friendly.

In this page, we are providing Air Around Us Class 6 Extra Questions and Answers Science Chapter 15 pdf download. NCERT Extra Questions for Class 6 Science Chapter 15 Air Around Us with Answers will help to score more marks in your CBSE Board Exams. https://ncertmcq.com/extra-questions-for-class-6-science/

Class 6 Science Chapter 15 Extra Questions and Answers Air Around Us

Extra Questions for Class 6 Science Chapter 15 Air Around Us with Answers Solutions

Air Around Us Class 6 Extra Questions Very Short Answer Type

Air Around Us Class 6 Questions And Answers Question 1.
Name some musical instruments in which air plays an important role.
Answer:
Flute, saxophone, trumpet, horn, etc.

Air Around Us Class 6 Extra Questions And Answers Question 2.
What do human beings release during respiration?
Answer:
Co2

Air Around Us Class 6 Worksheet With Answers Question 3.
What is the layer of air that surrounds the earth is called?
Answer:
Atmosphere

Class 6 Science Chapter 15 Extra Question Answer Question 4.
What is the necessary condition for the combustion to take place?
Answer:
Presence of air

Class 6 Science Chapter 15 Extra Questions Question 5.
Which gas is present in the atmosphere which is essential for breathing?
Answer:
Oxygen

Air Around Us Class 6 Extra Questions Question 6.
Which component of air acts as a supporter of combustion?
Answer:
Oxygen

Class 6 Science Chapter 15 Question Answer Question 7.
Which component of air acts as a non-supporter of burning?
Answer:
Nitrogen and carbon dioxide.

Class 6 Science Ch 15 Extra Questions Question 8.
Why transparent glass window becomes hazy, if not wiped off regularly?
Answer:
Because dust particles settle on it.

Ncert Class 6 Science Chapter 15 Extra Questions Question 9.
Name one insect which lives deep under the soil.
Answer:
Earthworm

Class 6 Air Around Us Extra Questions Question 10.
What is moving air called?
Answer:
Moving air is called wind.

Class 6 Science Air Around Us Extra Questions Question 11.
Which gas is the major component of air? State its composition.
Answer:
Nitrogen gas (78%)

Extra Questions On Air Around Us Class 6 Question 12.
What is the relative proportions of nitrogen and oxygen in the air?
Answer:
4:1

Questions On Air Around Us Class 6 Question 13.
Name a device which uses wind energy to generate electricity.
Answer:
Windmill

Chapter 15 Science Class 6 Extra Questions Question 14.
Name the device which shows the direction of wind.
Answer:
Weather cock

Extra Questions Of Air Around Us Class 6 Question 15.
Why do earthworms come out of the soil during heavy rains?
Answer:
During heavy rain, water fills up the spaces occupied by air. So earthworms have to come out to breathe air.

Air Around Us Class 6 Extra Questions Short Answer Type

Question 1.
Why air is considered as mixture?
Answer:
Air contains oxygen and nitrogen as its major constituents along with carbon dioxide, and other gases. These gases retain their properties in air. So, the air is called a mixture.

Question 2.
Name the major constituents of air. Also give their volume proportions in air.
Answer:

Name of-constituents	% Composition
Nitrogen	78.1%
Oxygen	20.9%
Carbon dioxide	0.03%
Argon	0.9%
Other components of air are water vapour and dust particles.

Question 3.
What is atmosphere?
Answer:
The thin layer of air that surrounds the earth as an envelope is called atmosphere.

Question 4.
What is smoke?
Answer:
The dark-coloured gases caused by burning of anything is called smoke.

Question 5.
State the properties of air.
Answer:
Properties of air are as follows:

1. It is colourless
2. It is transparent
3. It is compressible
4. It occupies space
5. It is soluble in water
6. It has mass

Question 6.
What will happen if the amount of oxygen is increased in the air?
Answer:
Air will become more combustible and many substances may undergo fast oxidation.

Question 7.
State the properties of oxygen gas.
Answer:
Oxygen is a colourless, tasteless and odourless gas. It is soluble in water. Oxygen gas is essential for breathing (or respiration).

Question 8.
Why do you think, policemen wear masks?
Answer:
Policemen wear masks to prevent dust particles from getting into their respiratory system.

Question 9.
What do you mean by relative humidity?
Answer:
The content of water vapour in the air is expressed in the terms of humidity or relative humidity.

Question 10.
Why during an incident of fire, one is advised to wrap a woollen blanket over a burning object.
Answer:
Air is supporter of combustion. To cut-off the supply of air from the burning object it is advised to wrap a woollen blanket around it.

Air Around Us Class 6 Extra Questions Long Answer Type

Question 1.
What is the importance of water vapour in air?
Answer:
When air comes in contact with a cool surface, it condenses and forms tiny drops of water on the cooled surfaces. The presence of water vapour in the air is important for maintaining the water cycle in nature.

This is because it is water vapour present in the air which rises high in the sky along with hot air, get cooled, condenses to form clouds and then brings rain on the earth.

Question 2.
Explain briefly carbon dioxide gas and its properties.
Answer:
Carbon dioxide is a colourless and odourless gas. It is soluble in water. It neither burns nor supports burning. Co2 extinguishes a burning fire. Plants and animals consume oxygen for respiration and produce Co2 which is necessary for photosynthesis. It is an important greenhouse gas.

Question 3.
What are the uses of air?
Answer:
Air is useful to human beings in many ways. Some of the important uses of air are as follows:

1. It is used for breathing purpose.
2. It is used for burning fuels to make fire.
3. It helps the birds, bats and insects in flying.
4. It plays an important role in the water cycle in nature.
5. Compressed air is used in tyres of various kinds of vehicles.
6. It also helps in the dispersal of seeds and pollens of flowers of several plants.

Question 4.
Why the animals living deep inside the soil come out during heavy rains?
Answer:
The air is present in spaces between particles of soil. Animal living inside the soil get oxygen for breathing (or respiration) from the air present between the soil particles. However, when it rains heavily water fills up the spaces occupied by the air in the soil.

In this situation, the animals living inside the soil have to come out of the soil to obtain air for breathing. For example, the earthworms come out of the soil only during heavy rains.

Question 5.
Why we must always breathe in through our nose and not by our mouth?
Answer:
We inhale air when we breathe through our nostrils. We also know that air contains dust particles. To prevent dust particles from getting into the respiratory system, fine hair and mucus are present inside the nose.

Since our mouth does not contain the above-discussed barriers of dust, so if we breathe through it, dust particles may enter in our respiratory tract. This is why breathing through mouth is not suggested.

Air Around Us Class 6 Extra Questions HOTS

Question 1.
How will you prove that air is a mixture of several gases and not a compound?
Answer:

• The component of air varies from place to place.
• Components of air can be separated out.
• Different components of air retain their properties.

Question 2.
Why long chimneys are present in factories?
Answer:
Most of the factories produces harmful smoke and gases. So factories have long chimneys to carry these harmful gases away from our noses.

Question 3.
How nature maintains a balance of Co2 and o2 in atmosphere?
Answer:
Plant releases oxygen which is consumed by animals in the process of respiration. Animals release carbon dioxide which is consumed by the plants for the process of photosynthesis.

Question 4.
There are two colourless and odourless gases in jars A and B. One is oxygen and other is carbon dioxide. How will you detect which jar contain oxygen and which contain carbon dioxide gas?
Answer:
We can detect the gas as oxygen or carbon dioxide by bringing a burning splinter near the mouth of the jars. The gas which will support burning is oxygen gas and which will not support burning, i.e., extinguishes a burning splinter, is carbon dioxide gas.

Question 5.
Why is atmosphere important for sustenance of life on the earth?
Answer:
Atmosphere is important for the following reasons:

1. It keeps the temperature of earth fairly constant.
2. It contains all the gases essential for sustaining life.
3. It protects us from harmful UV radiations.
4. It maintains water cycle.

Air Around Us Class 6 Extra Questions Value Based (VBQs)

Question 1.
Garima observed that when she left her tightly capped bottle full of water in the open sunlight, tiny bubbles were formed all around inside the bottle. She was amazed and asked about this phenomenon to her science teacher.
(a) Why Garima observed tiny bubbles inside the bottle?
(b) What will happen to the bubbles if we bring it back to normal room temperature?
(c) When do we see the above phenomenon in nature and what is its significance?
(d) What values of Garima is shown here?

Answer:
(a) As the water in the bottle get warm due to the heat of sunlight air dissolved in it escaped and appeared as tiny bubbles.
(b) Tiny bubbles will again disappear in the water.
(c) We see the above phenomenon in summer season when oxygen dissolved in water reduces due to hot temperature and because of this aquatic life suffers.
(d) Garima is observable, intelligent, curious girl with scientific temperament.

Question 2.
While going for a local excursion to a deserted area, Vikas wore a mask. When boarding the school bus his friends made fun of him that he was looking odd and beside enjoying he is taking extra precautions. But when going through the dry roads all of his friends felt the need of the mask. He suggested everyone to tie handkerchief on their nose. It helped them a lot.
(a) What is dust?
(b) What are the health issues related with dust?
(c) How does a mask help?
(d) What values of Vikas is shown here?

Answer:
(a) Dust is tiny particles of earth or waste lying on ground or carried by the air.
(b) Dust particles badly effects our respiratory system. It may cause asthma, allergy, respiratory problems, etc.
(c) Mask acts as a barrier for the entry of dust particles directly into our nose. It filters the air.
(d) Vikas is intelligent, helpful and have future vision.

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Class 6 Science Chapter 10 Extra Questions and Answers Motion and Measurement of Distances

Extra Questions for Class 6 Science Chapter 10 The Living Organisms and Their Surroundings with Answers Solutions

Motion and Measurement of Distances Class 6 Extra Questions Very Short Answer Type

Class 6 Science Chapter 10 Extra Questions Question 1.
Name the invention which made a great change in modes of transport.
Answer:
Invention of wheel.

Motion And Measurement Of Distances Class 6 Extra Questions Question 2.
What kind of motion produce sound?
Answer:
Vibratory motion

Ncert Class 6 Science Chapter 10 Extra Questions Question 3.
What is the full form of SI unit?
Answer:
International System of unit.

Motion And Measurement Of Distances Class 6 Extra Questions And Answers Question 4.
Name the ancient modes of measurement.
Answer:
Handspan, cubit, finger, fathom, pace, etc.

Class 6 Science Ch 10 Extra Questions Question 5.
Which power was used to pull vehicles in ancient times?
Answer:
Animal power

Motion And Measurement Of Distances Class 6 Worksheet With Answers Question 6.
Name the two parts which must be mentioned to state the result of a measurement.
Answer:
Magnitude and unit.

Motion And Measurement Of Distances Class 6 Questions And Answers Question 7.
What type of measuring device would you use to measure the girth of a tree?
Answer:
Measuring tape

Measurement And Motion Class 6 Questions And Answers Question 8.
Which system of measurement is used now-a-days?
Answer:
SI system

Measurement And Motion Class 6 Questions Question 9.
Name the SI unit of length.
Answer:
Metre (m)

Chapter 10 Science Class 6 Extra Questions Question 10.
Which unit of length is used for measuring very small distance?
Answer:
Millimetre (mm)

Class 6 Chapter 10 Science Extra Questions Question 11.
Which unit of length is used for measuring larger distances?
Answer:
Kilometre (km)

Motion And Measurement Of Distances Extra Questions Question 12.
Which unit of measurement is used to measure the quantity of milk?
Answer:
Litre or millilitre

Motion And Measurement Of Distances Question Answer Question 13.
Give an example of circular motion.
Answer:
The movement of earth around the sun.

Class 6 Science Chapter 10 Extra Questions And Answers Question 14.
What type of motion do the vehicle on a straight road have?
Answer:
Rectilinear motion

Class 6 Science Chapter 10 Extra Question Answer Question 15.
What type of motion is shown by the wheel of a bicycle?
Answer:
Circular motion

Question 16.
State the type of motion exhibited by a falling stone.
Answer:
Rectilinear motion

Question 17.
Give one example of rotational motion.
Answer:
The spinning of earth on its axis.

Question 18.
Name two devices which are commonly used for measuring length.
Answer:
Ruler and measuring tape.

Question 19.
What is a fixed quantity called?
Answer:
Unit

Question 20.
When was SI unit recommended by the general conference of weights and measures?
Answer:
1960

Motion and Measurement of Distances Class 6 Extra Questions Short Answer Type

Question 1.
What is measurement?
Answer:
Measurement is defined as the comparison of some unknown quantity with a fixed quantity of the same kind.

Question 2.
What is a standard unit?
Answer:
A standard unit is a standard measure that has some definite and convenient quantity in it so that it remains the same wherever and by whoever it is used.

Question 3.
Define rest and motion.
Answer:
Rest: The object which do not change their positions with the time are said to be at rest.
Motion: The object which change their position with time are said to be in motion.

Question 4.
Why it is important to know how far a place is?
Answer:
It is important to know how far a place is, so that we can have an idea how we are going to reach that place, i.e., by walking, taking a bus or train, a ship, an aeroplane or even a spacecraft.

Question 5.
What is meant by rectilinear motion? Give two examples.
Answer:
The motion in a straight line is called rectilinear motion. For example, motion of a bullet fired from gun and motion of a stone falling down from a height.

Question 6.
Define periodic motion. State two examples.
Answer:
The motion which repeats itself after regular intervals of time, is called periodic motion. The two examples are
(i) revolution of moon around the earth and
(ii) revolution of earth around the sun.

Question 7.
Give one example each of the following types of motion:
(a) Linear
(b) Rotational
(c) Circular
(d) Periodic
Answer:
(a) Linear: Motion of a falling stone
(b) Rotational: The motion of a spinning top
(c) Circular: The movement of moon around the earth
(d) Periodic: The motion of a second’s hand of a watch

Question 8.
How is time related to motion?
Answer:
Motion and time are inseparable part. Motion is change in the position of an object with respect to time. In absence of time it will be hard to determine the motion of an object.

Motion and Measurement of Distances Class 6 Extra Questions Long Answer Type

Question 1.
What is meant by a standard unit of measurement? Why is it necessary to have standard units of measurement? Name the SI unit of length. Write its symbol.
Answer:
A unit of measurement which has a fixed value and does not change from person to person or place to place, is called a standard unit of measurement. It is necessary to have standard units of measurements for the sake of uniformity in measurement. The SI unit of length is metre. Its symbol is m.

Question 2.
State the procedures for the measurement of length using a metre scale.
Answer:
While measuring length using a metre scale, we must follow the steps given below:

1. The ruler should be kept along the length of the object so that the zero mark on the ruler coincides with the one end of the object. The ruler should be parallel to one of the edges.
2. While taking the measurement, the eyes should be correctly positioned. The eye must be exactly vertically above the point where the measurement is to be taken.
3. If the edge of the ruler is worn out or broken, the measurement should be taken from any other full mark of the ruler.

Question 3.
What are the reasons for which SI system is recommended?
Answer:
SI system is recommended for the following reasons:

1. It is standardised unit, therefore, it is accepted universally.
2. Even minute measurements are possible in this system.
3. Interconversions within the system make calculation easy.
4. The units do not change with time or place.

Question 4.
What is meant by (a) circular motion and (b) rotational motion? Give two examples of circular motion and two examples of rotational motion.
Answer:
(a) Circular motion: When an object moves along a circular path, it is called a circular motion.
Example:
(i) The movement of moon around the earth
(ii) The movement of earth around the sun

(b) Rotational motion: When an object twines or spins about a fixed axis, it is called rotational motion.
Example:
(i) The motion of a spinning top
(ii) The spinning of earth on its axis.

Question 5.
How will you measure the length of any curved line using a divider?
Answer:
Let there be a curved line AB (Fig. 10.8). Open the legs of the divider to cover some convenient distance. Place one leg of the divider at one end of the curved line and put the other leg on the line.

Now count the number of times the divider has to be taken along the line to cover the entire length of line AB. At the end, some portion of line may be left out, being less than the distance between the two legs. Measure it separately by adjusting the divider. Multiply the number of complete steps by the distance between the two legs. Add the length of the remaining distance to this length. You will get the total length of the curved line.

Motion and Measurement of Distances Class 6 Extra Questions HOTS

Question 1.
If you are given a woollen thread and a cotton thread and asked to measure the length of a curved line which thread will you prefer?
Answer:
Cotton thread will be preferred over woollen thread as it neither sinks nor extends and will give comparatively accurate result.

Question 2.
Would the distance of the stone from your hand will be same when you whirl it around? Give reason.
Answer:
Yes because the length of the string with which we have hold the stone is not changing.

Question 3.
Can you think of some objects which are exhibiting more than one type of motion? Also mention the type of motion in them.
Answer:
A cycle shows both rotational as well as rectilinear motion.

Motion and Measurement of Distances Class 6 Extra Questions Value-Based (VBQs)

Question 1.
Rahul and Sonia were playing with blocks and each of them made a train out of them. Both of them thought of measuring the length of the train using their handspan. By that time Rahul’s friend Anupam came and suggested them to measure with a measuring tape for fair result.
(a) What is a handspan?
(b) Why Anupam asked both of them to use measuring tape?
(c) What value of Anupam is shown here?
Answer:
(a) The distance between the tip of the thumb and tip of the little finger of a fully stretched hand is called handspan.
(b) To get the accurate result which is not possible with the handspan.
(c) Anupam is an intelligent and active boy.

Question 2.
Ishika was asked by her teacher to measure the length of the line drawn on the blackboard. She immediately took out her scale to measure the line. But she noticed that the end of her scale is broken. She felt very sad and said to the teacher that she would not be able to measure the length of the line. Teacher consoled her and taught her a new method of measuring line using the same scale.
(a) What is a scale?
(b) Name devices that can be used to measure length.
(c) What new method of measuring line by using a broken scale was taught by Ishika’s teacher?
(d) What values of Ishika is shown here?
Answer:
(a) A straight strip of wood, metal or plastic used for drawing straight line and measuring length.
(b) Measuring tape and ruler.
(c) If the end of a scale is broken, one can use any full mark of the scale and then subtract the reading of this mark from the reading at the other end.
(d) She got nervous easily and sensitive.

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Class 6 Science Chapter 7 Extra Questions and Answers Getting to Know Plants

Extra Questions for Class 6 Science Chapter 7 Getting to Know Plants with Answers Solutions

Getting to Know Plants Class 6 Extra Questions Very Short Answer Type

Class 6 Science Chapter 7 Extra Questions Question 1.
What are the plants having green tender stems called?
Answer:
Herbs

Getting To Know Plants Class 6 Extra Questions And Answers Question 2.
What type of root wheat plant have?
Answer:
Fibrous root

Getting To Know Plants Class 6 Pdf Questions And Answers Question 3.
Name one plant which has reticulate venation?
Answer:
Marigold

Getting To Know Plants Class 6 Questions And Answers Question 4.
Name the part of plant which produces food.
Answer:
Leaves

Class 6 Science Chapter 7 Getting To Know Plants Question Answer Question 5.
Name the part of a flower which becomes fruit after fertilization.
Answer:
Ovary

Getting To Know Plants Class 6 Notes Questions And Answers Question 6.
Name two types of roots found in plants.
Answer:

• Taproot
• Fibrous root

Getting To Know Plants Extra Questions Question 7.
Name the process by which plant make their food.
Answer:
Photosynthesis

Getting To Know Plants Class 6 Question 8.
Name the green pigment present in the leaves of a plant.
Answer:
Chlorophyll

Getting To Know Plants Class 6 Extra Questions Question 9.
Name the parts of plant which grows under the ground.
Answer:
Root grows under the ground.

Class 6 Science Ch 7 Extra Questions Question 10.
Name a plant which has weak stem.
Answer:
Climbers

Ncert Class 6 Science Chapter 7 Extra Questions Question 11.
Name the three types of plants.
Answer:
Herbs, shrubs and trees.

Class 6 Chapter 7 Science Extra Questions Question 12.
Which part of plant holds it upright?
Answer:
Stem

Getting To Know Plants Question Answer Question 13.
Name the tiny pores on the surface of a leaf.
Answer:
Stomata

Class 6 Science Chapter 7 Extra Questions And Answers Question 14.
What is the function of chlorophyll?
Answer:
Chlorophyll imparts green colour to the leaves.

Class 6 Getting To Know Plants Extra Questions Question 15.
Give one function of stem
Answer:
Stem helps in transportation of water and food in the plants.

Question 16.
Name some plants having taproot.
Answer:
Mango tree, turnip, carrot, beet, etc.

Question 17.
Give some examples of plants having fibrous roots.
Answer:
Millet, bamboo, sugar cane, sweet potato, etc.

Question 18.
What kind of stem do shrub have?
Answer:
Hard but not very thick.

Question 19.
What is the life span of shrubs?
Answer:
Many years but it is less than that of trees.

Question 20.
What kind of stem do herbs have?
Answer:
Soft and delicate stem.

Getting to Know Plants Class 6 Extra Questions Short Answer Type

Question 1.
What are herbs?
Answer:
Herbs are small plants having a soft and delicate stem.

Question 2.
What are shrubs?
Answer:
Shrubs are medium-sized plants with a hard and woody stem branching out near the base. Though stem of a shrub is hard but it is not very thick.

Question 3.
What is pistil?
Answer:
The pistil is the female part of a flower. It is also known as carpel.

Question 4.
Define taproot.
Answer:
A taproot is a straight tapering root which grows vertically down into the soil and gives out branches on all the sides.

Question 5.
What is root?
Answer:
Root is a part of a plant which is below the ground (in the soil). There are two types of roots:

• Taproot
• Fibrous root.

Question 6.
What are plants?
Answer:
Plants are living things. Each plant has many parts to perform different functions for its survival. The main parts of plant are root, stem, branches, leaves, flowers and fruits.

Question 7.
What are fibrous roots?
Answer:
Some plants do not have main root. They have a bunch of similar roots called fibrous roots.

Question 8.
Name the different parts of flowers.
Answer:
A flower consists of following parts:

1. Pedicel
2. Sepals
3. Petals
4. Stamens
5. Carpel

Question 9.
Define pollination.
Answer:
Transfer of pollen grains from anther to stigma of a flower is known as pollination.

Question 10.
What is a tree?
Answer:
Trees are tall and big plants with a hard and thick woody stem.

Question 11.
What are creepers?
Answer:
A plant having thin, long, and weak stem which cannot stand upright and spreads in the ground are known as creepers.

Question 12.
What are climbers?
Answer:
A plant having thin, long and weak stem which cannot stand upright, but readily climbs up neighboring support or a tree is called climber.

Question 13.
What is the main difference between climbers and creepers?
Answer:
The main difference between climbers and creepers is that the climber plants have climbing organs like tendrils but the creeper plants have no such climbing organs.

Question 14.
What is a flower?
Answer:
Flowers are the most beautiful part of a plant. Different plants have different types of flowers. Flowers are of many sizes, shapes and colours.

Question 15.
Define parallel venation.
Answer:
The type of venation in which the veins in a leaf run parallel to one another on both sides of the midrib is called parallel venation. For example, paddy, maize, millet, etc.

Getting to Know Plants Class 6 Extra Questions Long Answer Type

Question 1.
What is root? List the main functions of root.
Answer:
Root is that part of a plant which is below the ground (in the soil). The main functions of roots are as follows:

1. Root absorb water and nutrients from the soil which are needed by plant leaves to make food.
2. Roots help in holding the soil together and thus prevents soil erosion.
3. Roots help the plant to stand erect. This prevents the plant from being pulled out easily or blown away by the wind.
4. Some plants have modified roots which store food for the plants like beetroot, radish, carrot.

Question 2.
What are the functions of flower?
Answer:

1. A flower is the seat or organ of sexual reproduction and results in the formation of fruits and seeds. Seeds on germination give rise to new plants. A flower thus, results in multiplication of plants.
2. It is the source of food for many insects.
3. Flowering plants are grown in gardens and in homes because of the bright colour and fragrance of the flowers. Therefore, they beautify the surroundings and provide aesthetic value.

Question 3.
Explain the process of preparation of food in leaves.
Answer:
Leaves are the food factories of the plant. They make food for the plant by the process of photosynthesis. In photosynthesis, the green leaves of a plant combine carbon dioxide and water in the presence of sunlight and chlorophyll. This can be written as:
image 1

Question 4.
What are herbs, shrubs and trees? Give two examples of each.
Answer:

1. Herbs: Herbs are small plants having a soft and delicate stem. Herbs do not have woody stem. They are non-woody plants. Herbs have a green and tender stem. They are short sized plants. Herbs have short life span. For example, tomato, cabbage.
2. Shrubs: Shrubs are medium-sized plants with a hard and woody, branching out near the base. Shrubs tend to branch near ground level, so many branches are seen rising just above the ground giving them a bushy appearance. For example, lemon, tulsi, etc.
3. Trees: Trees are tall and big plants with hard and thick woody stem. The trees have one main stem called trunk which usually gives out branches and leaves. For example, neem, mango, etc.

Question 5.
What is stem of a plant? State the various functions of the stem in a plant.
Answer:Stem is the part of plant which rises vertically up from the ground. The main functions of the stem of a plant are as follows:

1. The stem holds the plants upright.
2. The stem of a plant carries water and minerals from the roots to the leaves and other parts of the plants.
3. The stem carries the prepared food from the leaves to other parts of the plant.
4. The stem holds the leaves in such a way that the leaves are able to get plenty of sunlight for preparing food by photosynthesis.

Question 6.
What is leaf? What are its functions?
Answer:
The leaf is a thin, broad, flat and green part of a plant which is attached to the stem (or branch). The leaves of plants have three main functions:

1. The leaves make food for the plant by photosynthesis.
2. The leaves get rid of excess water from the plant through transpiration.
3. The leaves carry out the process of respiration in plants.

Question 7.
Draw a labelled diagram of a flower.
Answer:
The main parts of a flower are sepals, petals, stamen and pistil.

Question 8.
What is a fruit?
Answer:
A fruit is that part of a plant that contains the seeds. Apples, oranges, plums, etc., are the example of fruits. The fruits and seeds are formed from flowers by the process of pollination and fertilization.

Question 9.
Differentiate between herbs and shrubs.
Answer:

Herbs	Shrubs
1. Herbs are small plants having a soft and delicate stem.	1. Shrubs are medium-sized plants with hard and woody stem.
2. Herbs do not grow more than one metre in height.	2. Shrubs tend to branch near ground level.
3. They have a very short life span, e.g., tomato, cabbage, etc.	3. They have life span shorter than that of trees but more than herbs, e.g., cotton, tulsi, etc.

Question 10.
Differentiate between taproot and fibrous root.
Answer:

Taproot	Fibrous root
1. Taproot has only one main and long root.	1. Fibrous root do not have a main root.
2. Taproot goes deep in the soil.	2. They do not go deep into the soil.
3. Taproots are found in plants which have reticu­late venation in their leaves.	3. These are found in plants which have paral­lel venation in their leaves.

Getting to Know Plants Class 6 Extra Questions HOTS

Question 1.
Write the location of the following:
(i) Ovule
(ii) Pollen grains
(iii) Endosperm
Answer:
(i) Ovary
(ii) Anther
(iii) Seed

Question 2.
Write the name of plant parts which perform the following functions:
(i) Anchoring
(ii) Transportation
(iii) Preparing food
(iv) Reproduction
(v) Germination
Answer:
(i) Root
(ii) Stem
(iii) Leaves
(iv) Flower
(v) Seed

Question 3.
Which part of the flower is necessary for reproduction? Why?
Answer:
Stamen and pistil are necessary for reproduction as they produce male gamete and female gamete respectively. Petals helps in attracting insects for pollination as they are variously coloured whereas sepals protect the flower buds. Both petals and sepals are accessory parts of the flower.

Question 4.
What is the function of seed coat?
Answer:
Seed is surrounded by a tough covering called seed coat. It protects the seed from outer harsh environment.

Question 5.
What is the main difference between climbers and creepers?
Answer:
Climbers need support whereas creepers can grow along the ground. Climbers have tendrils for climbing but creepers do not have this structure.

Getting to Know Plants Class 6 Extra Questions Value Based Question (VBQs)

Question 1.
Rima kept some soaked gram seeds for sprouting. But she forgot about this. On fifth day she suddenly remembered and opened the container having seeds. She found that small leaves along with white sprouts have grown out of the seed.
(a) What does the white structure of sprout give rise to?
(b) What kind of root is found in gram plant?
(c) Why Rima found small leaves in the sprouts?
(d) What value of Rima is shown here?
Answer:
(a) White structure of the sprout give rise to root of the plant.
(b) Taproot.
(c) Rima kept the soaked gram seeds for many days so they germinated into young plants.
(d) Rima is careless, forgetful but at the same time she is a good observer.

Question 2.
Rakesh while walking in his terrace garden found many types of wasp wandering around the flowers. He thought that these insects are spoiling his flower and immediately took out the insect collecting net to get rid of them. On seeing this Rakesh’s elder brother stopped him from doing this and said that these wasps are flower’s friends.
(a) What do these wasps get from the flowers?
(b) Why Rakesh’s elder brother call these wasps as ‘flower’s friend’?
(c) What is pollination?
(d) What value of Rahul’s elder brother is shown here?
Answer:
(a) Wasps get pollen and nectar from the flowers.
(b) Wasps help in transfer of pollen grains from anther to stigma. Thus, it helps in pollination.
(c) Pollination is the transfer of pollen grains from anther to stigma of a flower.
(d) Rahul’s elder brother is eco-friendly, intelligent, empathy and helpful.

Question 3.
After learning about types of roots Amrita was too curious to see types of roots in different plants. She started uprooting plants from the garden. Shweta, her friend and classmate, on seeing this stopped her and told her that one can determine the kind of root by just seeing the leaves. We need not require to uproot the plants.
(a) What are the two types of roots?
(b) How leaves can determine the type of roots?
(c) What value of Shweta is shown here?
Answer:
(a) Two types of roots are taproot and fibrous root.
(b) The design made by veins in a leaf is called the leaf venation. The pattern of leaf venation determines the type of roots present in a plant. If the leaf have reticulate venation then it has taproot and if the leaf have parallel venation then it has fibrous root.
(c) Shweta is intelligent, eco-friendly and have scientific aptitude.

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Sorting Materials Into Groups Class 6 Extra Questions and Answers Science Chapter 4

Extra Questions for Class 6 Science Chapter 4 Fibre to Fabric with Answers Solutions

Sorting Materials Into Groups Class 6 Extra Questions Short Answer Type

Class 6 Science Chapter 4 Extra Questions Question 1.
Name a non-metal that has lustre.
Answer:
Diamond

Sorting Materials Into Groups Class 6 Questions And Answers Question 2.
Name the two main groups into which all the objects around us can be classified.
Answer:
Living objects and non-living objects.

Sorting Materials Into Groups Extra Questions Question 3.
Is a substance which can be compressed soft or hard?
Answer:
Soft

Sorting Materials Into Groups Class 6 Worksheet With Answers Question 4.
Name two objects made from transparent materials.
Answer:
Polythene, glass-container.

Sorting Materials Into Groups Class 6 Extra Questions Question 5.
What do we call a substance that is used to make an object?
Answer:
Material

Ncert Class 6 Science Chapter 4 Extra Questions Question 6.
Which state of matter has fixed shape and volume?
Answer:
Solid

Sorting Materials Into Groups Question And Answer Question 7.
Name two transparent liquids.
Answer:
Water and alcohol

Class 6 Science Ch 4 Extra Questions Question 8.
In a blue-colored solution of a dye and water which is solute and which is solvent?
Answer:
Water is solvent and dye is solute.

Class 6 Chapter 4 Science Extra Questions Question 9.
Name some substances which are made from plastics.
Answer:
Toys, plates, buckets, cups, pens, etc.

Class 6 Sorting Materials Into Groups Extra Questions Question 10.
Which is more hard-sponge or iron?
Answer:
Iron is harder than sponge.

Chapter 4 Science Class 6 Extra Questions Question 11.
Which material is generally used for making pens?
Answer:
Plastic and metal

Extra Questions On Sorting Materials Into Groups Question 12.
Name two gases which are insoluble in water.
Answer:
Nitrogen and hydrogen

Extra Questions For Class 6 Science Chapter 4 Question 13.
Name two substances which are made from leather.
Answer:
Belt and purse (wallets)

Science Chapter 4 Class 6 Extra Questions Question 14.
What is common between salt and sand?
Answer:
Both have mass and are in solid state.

Science Class 6 Chapter 4 Extra Questions Question 15.
Name two materials which floats on water.
Answer:
Wood and plastics Define density.

Question 16.
Define Density.
Answer:
Density is defined as mass per unit volume of a substance.

Question 17.
Name the materials that can be used for making the handles of cooking utensils.
Answer:
Wood, bakelite and plastics.

Question 18.
Name two materials which are non-conductor of electricity.
Answer:
Wood and rubber

Question 19.
Name two materials without lustre.
Answer:
Cardboard and wood

Question 20.
Name two materials which do not dissolve in water and are lighter than water.
Answer:
Kerosene and mustard oil

Sorting Materials Into Groups Class 6 Extra Questions Short Answer Type

Question 1.
What are the similarities between iron, copper and aluminium?
Answer:
The similarities between iron, copper and aluminium are:
(a) They all have lustre.
(b) They all are metals.
(c) They all are hard.
(d) They all conduct electricity.

Question 2.
Why do we need the grouping of objects?
Answer:
Grouping the objects helps us to arrange them in a systematic manner. The objects when grouped are easy to handle. When grouped it is easy to know the properties of objects clearly. Grouping also makes easy to compare two objects.

Question 3.
Write any four properties of materials.
Answer:
The four properties of materials are:
(a) Appearance
(b) Hardness
(c) Solubility
(d) Transparency

Question 4.
Why is mercury used in making thermometers?
Answer:
Mercury is used in making thermometers because:

1. Mercury is liquid at room temperature.
2. It is a good conductor of heat.
3. Mercury has lustre, so, it is easy to read the temperature shown by the level of mercury.

Question 5.
What are materials? Classify it.
Answer:
A substance which is made up of matter and is used for making objects is called material.
Materials are classified as:
(a) Natural materials
(b) Man-made materials

Question 6.
Explain the types of properties.
Answer:
Properties may be of two types:
(a) Physical properties: Physical properties include appearance, hardness, solubility, flotation, heaviness, transparency, etc.
(b) Chemical properties: Chemical properties include the behavior of a material towards different chemicals and chemical reactions. For example, reaction with oxygen, water, acids, combustion, burning, etc.

Question 7.
Write three common characteristics of materials.
Answer:
The three common characteristics of materials are:
(a) All materials can be felt by one or more of our senses.
(b) All materials occupy space.
(c) All materials have mass.

Question 8.
What is the need for classification?
Answer:
Classification is essential for:

1. Identification of objects
2. Sorting of objects
3. Locating things
4. Understanding similarities and dissimilarities among objects.
5. Making the study of objects easy and more meaningful.

Question 9.
Name the various materials from which following things can be made:
Shoes, chair, coins, utensils, clothes
Answer:

1. Shoes: Leather, rubber, plastic, canvas.
2. Chair: Wood, metal, plastics, concrete.
3. Coins: Copper, silver, gold, aluminium.
4. Utensils: Iron, copper, aluminium, brass.
5. Clothes: Cotton, wool, silk, rayon.

Question 10.
Why is tumbler not made with a piece of cloth?
Answer:
Tumbler is not made with a piece of cloth because we generally use a tumbler to keep a liquid. A tumbler made of a piece of cloth cannot be used to keep water. So, a tumbler is made with a material which has a property to hold the liquid.

Sorting Materials Into Groups Class 6 Extra Questions Long Answer Type

Question 1.
What are the advantages of classification of materials?
Answer:
The advantages of classification of materials are as follows:

1. Classification helps us to understand similarities and dissimilarities among the objects.
2. Classification of objects help us to identify the objects easily.
3. Classification helps us to locate things. It is only because of classification, we are able to locate a book that we need out of thousands in our school library.
4. Classification helps us to know the material of which the object is formed.
5. Classification makes study of different objects easy and more meaningful.
6. Rather than studying each object separately, we can study just one out of each class of different objects and generalize our results for the class as a whole.

Question 2.
“Grouping of objects helps the shopkeeper.” Justify the statement.
Answer:
The grouping of objects in proper way makes it easier to work. When we got to purchase something, the shopkeeper locates it easily, because there are separate shelves to put various items and similar things are kept at one place. If he randomly places all of these, he would never be able to find it so quickly and easily.

Question 3.
Describe a method to prove that water is a transparent material.
Answer:
Take a white sheet of paper, one sketch pen, one clean beaker and a small quantity of clean water. Now on white sheet of paper make a symbol (say ‘X’). Now put the empty beaker over the marked symbol. We can see the marked symbol properly. Now pour water in the beaker and observe the same mark. The mark is again visible. This method proves that water is transparent.

Question 4.
Show that sugar, common salt and washing soda are soluble while chalk powder, iodine and sand are insoluble in water.
Answer:
Take six test tubes, fill each of them about half with water. Keep each of them in a test tube stand. Add a pinch of each of six substances in separate test tubes. Shake well and allow them to stand for few minutes. Common salt, sugar and washing soda dissolves while iodine, chalk powder and sand do not dissolves in water.

Question 5.
Write an experiment to show that our palm is translucent.
Answer:

Cover the glass of a torch with your palm at a dark place. Switch on the torch and observe from the other side of the palm. We see that light of torch passes through palm but not clearly. This experiment shows that our palm becomes translucent when a strong beam of light passes through it.

Question 6.
Discuss important properties of matter on the basis of which we can classify them.
Answer:
Some important properties of matter are discussed below:

1. Appearance: Materials can be classified on the basis of their appearance. Different materials have different appearances.
2. Lustre: Materials can be classified on the basis of their lustre. Some.shine a lot whereas others are quite dull.
3. Solubility in water: On the basis of solubility in water, substances are classified as soluble and insoluble.
4. Transparency: Almost all light can pass through transparent substances. No light can pass through opaque substances. Light can pass partially through translucent substances.
5. Density: Density is mass per unit volume of a substance. On the basis of density some substances can float and some get sink in water or other liquid.

Question 7.
Discuss the solubility of gases in water. What is the importance of oxygen gas dissolved in water? How is the carbon dioxide gas dissolved in water helpful to the aquatic plants?
Answer:
Some gases are soluble in water whereas other gases are insoluble in water. Oxygen gas is soluble in water. The plants and animals which live in water use the oxygen dissolved in water for respiration. Thus, oxygen dissolved in water is very important for the survival of animals and plants that live in water.

Carbon dioxide gas is also soluble in water. The plants which live in water use the carbon dioxide gas dissolved in water for the process of photosynthesis.

Question 8.
Compare the properties of solid, liquid and gas.
Answer:

Solid	Liquid	Gas
1. Have a definite shape.	1. Does not have a definite shape; they take the shape of the container.	1. Do not have a definite shape; they take the shape of the container.
2. Have a definite size or volume.	2. Have a definite volume.	2. Do not have a definite size or volume.
3. Negligible compressibility.	3. Slightly compressible.	3. Highly compressible.
4. Particles do not move freely.	4. Particles move freely but are confined within a boundary.	4. Particles can move freely.

Sorting Materials Into Groups Class 6 Extra Questions HOTS

Question 1.
Why some metals like iron or copper lose their lustre on exposure to air?
Answer:
Iron and copper react with the oxygen and moisture present in air and form a rusted or corroded layer on its surface.

Question 2.
Why some substances sink while other float on water?
Answer:
Substances which have relative density more than water sinks in water but substances which have relative density less than water floats on water.

Question 3.
Do surface area plays any role in sinking or floating of substances?
Answer:
Yes.

Question 4.
You are provided with three liquids-water, honey and oil. On pouring the three liquids simultaneously without disturbing. What will be the arrangement of these liquids from top to bottom?
Answer:
Arrangement of liquids from top to bottom is: Oil ➝ water ➝ honey.

Question 5.
Name a material which is actually opaque but you can make it translucent with a little effort.
Answer:
Paper is opaque. We can make it translucent by rubbing a little oil on it.

Question 6.
Do you think all metals are hard? Name one hardest non-metal.
Answer:
No, because metal like sodium is soft and mercury is a liquid. Hardest non-metal known is diamond.

Sorting Materials Into Groups Class 6 Extra Questions Value Based Question (VBQs)

Question 1.
Ram and Shyam, both friends, opened a new grocery shop. They bought many materials from the main market. Shyam arranged all items systematically based on their similarities and differences. Ram did not arranged the items. He just put them randomly according to the available space in his shop.
(a) What is the significance of grouping items?
(b) Suppose you are a grocer, how will you arrange items in your shop?
(c) Who do you think will be able to locate things in their shop easily-Ram or Shyam? Why?
(d) What values of Ram and Shyam are shown here?
Answer:
(a) Grouping items based on their similarities or differences helps us in locating objects easily.
(b) Being a grocer, I will separate eatables from non-eatables then I will arrange all brands of biscuits, cakes, toffees, soaps, detergents, household items, etc., shelvewise. I will keep gunny bags of grains and pulses at safer and drier places.
(c) Shyam will be able to locate things easily because he has arranged items systematically in his shop.
(d) Ram seems to be careless, lazy and inexperienced whereas Shyam seems to be active, professional and intelligent.

Question 2.
Shreya while playing with her elder brother in the garden pool, observed that a wooden block sinks
in water but a wooden plank of same weight floats on water. She was very astonished on seeing this.
Shreya’s brother on seeing such question mark on her face explained the reason.
(a) What is density?
(b) Why some substances float while other sink in water?
(c) Why the wooden plank float on water while the wooden block sink in water though both have same weight?
(d) What value of Shreya is shown here?
Answer:
(a) Density is defined as mass per unit volume of a substance.
(b) Substances that have density lower than water floats while substances that have density less than water sinks in water.
(c) Volume of wooden block is more than the wooden plank as weight of wooden plank is distributed to larger area than the wooden block. So wooden plank floats while wooden block sinks.
(d) Shreya is curious, good observation capacity and intelligent.

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Class 6 Science Chapter 1 Extra Questions and Answers Food Where Does it Come From

Extra Questions for Class 6 Science Chapter 1 Food Where Does it Come From with Answers Solutions

Food Where Does it Come From Class 6 Extra Questions Very Short Answer Type

Class 6 Science Chapter 1 Extra Questions Question 1.
Name the animals which provide us milk.
Answer:
Some animals that give us milk are cow, goat, camel and buffalo.

Food Where Does It Come From Class 6 Questions And Answers Question 2.
Name the major ingredients of dal.
Answer:
The major ingredients of dal are pulses, water, salt, oil, spices, etc.

Food Where Does It Come From Extra Question Answer Question 3.
Which animals give us meat?
Answer:
We get meat from goat, sheep and pig.

Ncert Class 6 Science Chapter 1 Extra Questions Question 4.
Name the process in which moong are used to obtain more nutritious food.
Answer:
Sprouting

Class 6 Science Chapter 1 Extra Questions And Answers Question 5.
Name any five products prepared from milk.
Answer:
The five products prepared from milk are cheese, butter, sweets, ghee, curd.

Food Where Does It Come From Question Answer Question 6.
Name the types of oil that can be used for making food items.
Answer:
Mustard oil, groundnut oil, sunflower oil, soyabean oil, coconut oil.

Extra Questions For Class 6 Science Chapter 1 Question 7.
Name two sugar-producing plants.
Answer:
The two sugar-producing plants are:

• Sugar cane
• Sugar beet

Food Where Does It Come From Class 6 Worksheet With Answers Question 8.
What are the two main sources of food?
Answer:
The two main sources of food are: Plants and Animals

Food Where Does It Come From Class 6 Extra Questions Question 9.
Name a plant which have one edible part.
Answer:
Sugar cane is the plant which has only one edible part.

Class 6 Science Ch 1 Extra Questions Question 10.
Name some plants which have two or more edible parts.
Answer:
Plants having two or more edible parts are: radish, lotus, methi, mustard.

Class 6 Science Chapter 1 Important Questions Question 11.
Which part of a mustard plant is edible?
Answer:
The edible parts of a mustard plant are seeds and leaves.

Class 6 Science Chapter 1 Extra Question Answer Question 12.
Which term in the following includes the other three? Cow, monkey, buffalo, herbivores.
Answer:
Herbivores

Class 6th Science Chapter 1 Extra Questions Question 13.
Name the animals that eat both plants and animals.
Answer:
Some animals that eat both plants, as well as animals, are human beings and bears.

Food And Its Sources Class 6 Questions And Answers Question 14.
List the name of some carnivores animals.
Answer:
Some carnivores animals are lion, tiger, dog, etc.

Science Chapter 1 Class 6 Extra Questions Question 15.
What are the seed with white coloured tiny roots on them called?
Answer:
Sprouts

Food Where Does it Come From Class 6 Extra Questions Short Answer Type

Question 1.
Define the term food.
Answer:
Eatables taken by human beings and animals which provide them energy for various activities, for growth and good health, mental stimulus for thinking are called food. For example – bread, chapati, rice, etc.

Question 2.
What do you mean by food habits?
Answer:
The habit of an individual owing to which it takes a particular type of food depending upon its taste and availability is called food habits.

Question 3.
What do you mean by ingredients?
Answer:
The materials or components which are used to prepare food are called ingredients. For example – Chapati is made up of only two ingredients – wheat flour and water.

Question 4.
Name the most common food items provided by the following animals:
(a) cow
(b) hen
(c) goat
Answer:
(a) Cow – it provides us with milk.
(b) Hen – it provides us with eggs and meat.
(c) Goat – it provides us with milk and meat.

Question 5.
How can we say plants are the major sources of food?
Answer:
Plants are the sources of food materials like cereals (wheat, rice, barley, millet, etc.), pulses, oils, sugar, fruit, spices, tea, coffee, etc. Thus plants are the major sources of food for human beings and other animals.

Question 6.
Explain the main functions of food for living beings.
Answer:
The main functions of food for living beings are:

1. It provides us energy for doing all life activities.
2. It provides material for repair of damaged cells and to replace dead cells in the body.
3. It provides materials needed for growth and reproduction.
4. It keeps us healthy and enables us to fight against infections.
5. It provides mental stimulus for thinking.

Question 7.
What do you mean by sprouting?
Answer:
When seed begin to grow or germinate by developing white coloured tiny roots on them, they are called sprouts. This method of making sprouts from seeds is called sprouting.

Question 8.
Classify the following animals into herbivores, carnivores and omnivores.
Dog, tiger, deer, man, cow, crow, rabbit, vulture, camel, lizard, squirrel, lion, cat.
Answer:

Herbivores	Carnivores	Omnivores
Deer	Tiger	Man
Cow	Vulture	Crow
Rabbit	Lizard	Cat
Camel	Lion	Dog
Squirrel

Question 9.
Why we must eat cooked food only?
Answer:
Cooked food is easily digested by our body. It also kills harmful germs. Cooking increases the taste also. That is why we must prefer cooked food.

Question 10.
Give some examples of food obtained from plants and animals.
Answer:

Food we get from plants	Food we get from animals
Cereals, Pulses, Vegetables, Fruit, Sugar, Oil, Spices, Tea, Coffee	Meat, Eggs, Milk and milk products (like Cheese, Ghee, Butter, Curd, Sweets, etc.), Honey

Question 11.
What are the food habits of the people in Tamil Nadu, Punjab and Gujarat?
Answer:

• Tamil Nadu – Idli, Dosa, Sambhar, Banana chips, Coconut oil, etc.
• Punjab – Lassi, Paratha, Chapatis, Sarson saag, Pulses, etc.
• Gujarat – Khandvi, Gujarati samosa, Uundhyu, Dhokla, Thepla, etc.

Question 12.
Which category of food is known as ‘energy-rich food’?
Answer:
Cereals are known as ‘energy-rich food’ as they are rich in carbohydrates. For example, rice, wheat, jowar, maize, etc.

Food Where Does it Come From Class 6 Extra Questions Long Answer Type

Question 1.
What is honey? What are its importance?
Answer:
A sweet substance (liquid) prepared by bees from the nectar, i.e., sweet juice collected from flowers, is called honey.

Importance of honey are:

1. It can reduce seasonal allergy symptoms.
2. It delivers a quick boost of energy.
3. It helps prevent cellular damage and loss within the brain.
4. It can be a health aid for sleepless night.
5. It brings temporary relief to the scalp by targeting dandruff.

Question 2.
How is honey produced and collected?
Answer:
The steps involved in the production of honey are:

1. Beekeepers develop a device called sleek. It is a basket placed upside down over the beehive. The full honeycombs were removed from underneath.
2. Beekeepers inject a puff of smoke into the hive. The bees gorge themselves on honey in an attempt to take as much as they can with them before fleeing.
3. Using a long-handled uncapping fork, the beekeepers scrap the caps from both sides, of the honey-comb onto the tapping tray.
4. Honey is extracted from beehives either manually or with the help of an artificial extractor.

Question 3.
Differentiate between ‘food producers’ and ‘food consumers’.
Answer:

Food producers	Food consumers
1. The living beings which can prepare their own food by natural method are called food producers. 2. All the green plants are food producers. 3. They are also called autotrophs. 4. They are dependent on water, sunlight and carbon dioxide for their food.	1. The living beings which cannot prepare their own food are called food consumers. 2. All the animals including human beings are food consumers. 3. They are also called heterotrophs. 4. They are dependent on the food producers, i.e., green plants for their food.

Question 4.
Define the term herbivores. Give five examples.
Answer:
Animals which eat only the plants or the plant products like fruits, flowers, seeds, nectar, etc., are called herbivores. The five examples of herbivores are: deer, cow, rat, camel and goat.

Question 5.
Define the term carnivores. Give five examples.
Answer:
Animals which eat other animals are called carnivores. The five examples of carnivores are: tiger, lion, hyena, vulture and jackal.

Question 6.
Define the term omnivores. Give five examples.
Answer:
Animals which eat both plants, as well as other animals, are called omnivores. The five examples of omnivores are: cat, crow, human beings, bear and dog.

Question 7.
Define scavengers and parasites with examples.
Answer:
Scavengers: Some carnivores and omnivores eat dead animals. They are called scavengers. They help in cleaning our surroundings. For example, crow, jackal, hyena, etc.

Parasites: These are some plants and very small animals which live on or inside other animals or plants and get their food from them. For example, fleas, leeches, bed bugs, mistletoe, etc.

Question 8.
Describe in detail the processes of making sprouts from moong.
Answer:
The processes involved in making sprouts from moong are:

1. Some dry moong are taken and put in a container filled with water.
2. The next day; water is drained completely and seeds are left in the vessel.
3. These seeds are wrapped with a piece of wet cloth and are set aside.
4. Water must be sprinkled on the piece of cloth from time to time to keep it wet.
5. When the wrap is removed, we will find that tiny white roots have emerged out from the seed. We say that the seeds have sprouted.

Question 9.
What do you mean by vegetarian and non-vegetarian food habits?
Answer:
Man is omnivorous, i.e., he feeds on both plants and animals. But due to some religious or traditional reasons some people strictly avoid the food containing meat, fish, egg, etc., while some have no hesitation to have such food stuffs. On this basis there are two types of food habits found in our society:

Vegetarian: People who takes only plants and plant products and dairy products but do not take meat, fish, eggs, etc.
Non-vegetarian: People who take the above food stuff along with vegetables.

Food Where Does it Come From Class 6 Extra Questions HOTS

Question 1.
Plants provide us a different food items. Are they useful to us in other ways also? Explain.
Answer:
Plants are useful to us in many ways. They have multi uses. All we know that most of the food items that we eat come from plants. Thus they are the major sources of food for human beings and animals. But very few of us know that plants have other indirect benefits also which have social and other impacts.

We often see that people sit under a big tree to intake fresh oxygen because it very useful for our health. Simultaneously they discuss many social issues and problems in order to make a consensus. Thus plants or trees have social impacts.

In many religions plants are worshipped. In Hindu religion, a banayan tree, peepal tree and many other trees have their religious importance. In Christianity, X-mas tree is worshipped. Thus plants have religious impact. Plants are important from health point of view also. Most of the medicines are prepared from plants. Plants help us in curing different diseases. Some spices also have health benefits.

Clothes are important for us because they protect us from heat and cold which are made from the plants. Thus they have industrial benefits. Finally we can say that plants-are important from social, political, religious and health point of view.

Question 2.
Why plants are called ultimate source of food though we get food from animals also?
Answer:Plants are called ultimate source of food because they are the producers and produce food consumed by the herbivores. We get food from these animals which are directly or indirectly dependent on plants.

Question 3.
Why scientifically we say most of the vegetables like bottle gourd, brinjal, chilli actually are fruits? Answer:
Because these vegetables are developed from mature ovary which are actually fruits of the plant.

Question 4.
Name some stems and roots that we consume as vegetables.
Answer:

• Stems – lotus stem, potato, ginger and onion.
• Roots – beetroot, sweet potato, radish and carrot.

Food Where Does it Come From Class 6 Extra Questions Value Based Question (VBQs)

Question 1.
Nima while helping her mother washing the vegetables was wondering why her science teacher told that these vegetables are actually fruits. She then asked her father. Her father explained this with the help of internet.
(a) Name some vegetables which are actually fruits of the plants.
(b) Name some seed eaten as food by us.
(c) What quality of Nima is shown here?
Answer:
(a) Brinjal, bottle gourd, tomato, lady’s finger are some of the fruits which are eaten as vegetable by us.
(b) Some seeds eaten as food by us are pulses, pea and beans.
(c) Nima is exploring, curious and helping in nature.

Question 2.
While playing in a park in evening Rahul observed very colourful butterflies and bees sitting on the flowers. He wondered why these insects are sitting on flowers only. His friend Rohan explained the reason to him.
(a) Name some food products that we obtained from animals.
(b) Why were butterflies and insects sitting on the flowers?
(c) What value of Rohan is seen here?
Answer:
(a) We obtain milk and milk products, meat, egg, cod-liver oil and honey from animals.
(b) Butterflies and insects were sitting on the flowers to obtain nectar.
(c) Rohan is intelligent and helpful to his friend.

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Class 6 Science Chapter 3 Extra Questions and Answers Fibre to Fabric

Extra Questions for Class 6 Science Chapter 3 Fibre to Fabric with Answers Solutions

Fibre to Fabric Class 6 Extra Questions Very Short Answer Type

Class 6 Science Chapter 3 Extra Questions Question 1.
What are fabrics?
Answer:
Fabrics mean a woven material, textile or other materials resembling woven cloth.

Fibre To Fabric Class 6 Question 2.
Name two synthetic fibres.
Answer:
Polyester and nylon

Fibre To Fabric Class 6 Questions And Answers Question 3.
What are fibres?
Answer:
The thread-like materials used to make cloth or fabric are called fibres.

Fibre To Fabric Class 6 Extra Questions Question 4.
Name some natural fibres.
Answer:
Wool, jute, cotton, flax, etc.

Fibre To Fabric Class 6 Extra Questions And Answers Question 5.
Name two varieties of cloth materials which are commonly used.
Answer:
Cotton and wool

Class 6 Fibre To Fabric Extra Questions Question 6.
Name the thing which is used to make fabric.
Answer:
Yarns

Ncert Class 6 Science Chapter 3 Extra Questions Question 7.
How many types of fibres are there?
Answer:
There are two types of fibres:
(a) Natural fibres
(b) Synthetic fibres

Fiber To Fabric Class 6 Question 8.
What are yarns made up of?
Answer:
Yarns are made up of thin strands called fibres.

Fibre To Fabric Class 6 Worksheet With Answers Question 9.
Name the four types of fabrics which are still used in un-stitched form in our country.
Answer:
Dhoti, saree, lungi and turban.

Class 6 Science Ch 3 Extra Questions Question 10.
Where was cotton cultivated for clothes for the first time?
Answer:
India

Extra Questions Of Fibre To Fabric Class 6 Question 11.
Name two products obtained by weaving ‘twigs’ and ‘grass’.
Answer:
Mats and baskets

Questions On Fibre To Fabric Class 6 Question 12.
What type of soil is used to grow cotton plants called?
Answer:
Black soil

Fibre To Fabric Class 6 Notes Questions And Answers Question 13.
What is ginning?
Answer:
Ginning is the process of separating fibres from the seeds of cotton.

Extra Questions For Class 6 Science Chapter 3 Question 14.
What are fruits of cotton plants called?
Answer:
Cotton bolls

Fibre To Fabric Class 6 Test Paper Question 15.
Name two hand-operated devices used for spinning.
Answer:
Takli and charkha.

Fibre To Fabric Question Answer Question 16.
Name the states where jute plants are mainly grown in India.
Answer:
Bihar and West Bengal.

Fiber To Fabric Class 6 Questions And Answers Question 17.
What is spinning?
Answer:
The process of making yarns from fibres is called spinning.

Class 6 Chapter 3 Science Extra Questions Question 18.
What is the colour of cotton flowers?
Answer:
Yellow

Extra Questions On Fibre To Fabric Class 6 Question 19.
Which country is the largest producer of jute?
Answer:
Bangladesh

Fibre To Fabric Extra Questions Question 20.
List one use of jute.
Answer:
Jute is mainly used as a packaging material.

Science Class 6 Chapter 3 Extra Questions Question 21.
Which jute is used as a herb in Middle Eastern and African countries?
Answer:
Tossa jute

Class 6 Fibre To Fabric Question Answer Question 22.
Name the animal fibre.
Answer:
Wool

Class 6 Science Fibre To Fabric Extra Questions Question 23.
What is sericulture?
Answer:
The rearing of silk moths for the production of silk is called sericulture.

Fibre And Fabric Class 6 Question 24.
Which fibre is the expensive fibre?
Answer:
Silk

Question 25.
Which country is the leading producer of wool?
Answer:
Australia

Fibre to Fabric Class 6 Extra Questions Short Answer Type

Question 1.
Why do we need clothes?
Answer:
We need clothes because of the following reasons:

1. Clothes protect our body from extreme weather conditions, like heat, cold, rain, etc.
2. They protect us from harmful insects, bacteria and dirt, wind and injury.
3. They protect us from foreign, harmful substances falling on our body.
4. Clothes help us to maintain body heat.

Question 2.
What are natural fibres? Give some examples of natural fibres.
Answer:
The fibres that are obtained from natural sources, i.e., plants and animals are called natural fibres. For example, cotton, jute, wool, etc.

Question 3.
List three uses of cotton.
Answer:
The three uses of cotton are:

1. Cotton is useful to make bed sheets, curtains, upholstery, etc.
2. Cotton oil is extracted from its seeds, which is refined to use as a cooking oil.
3. Cotton is also used to make some artificial fibres like rayon.

Question 4.
List the steps involved in the preparation of fabric.
Answer:
The steps involved in the preparation of fabrics are:

1. Obtaining fibre.
2. Preparation of yarn from fibres by spinning.
3. When two sets of yarn are involved, yarns are woven on looms to make fabric. When a single yarn is used, the fabric is prepared by knitting.

Question 5.
What are synthetic fibres?
Answer:
The fibres which are made from chemical substances or which are not obtained from the plant and animal sources are called synthetic fibres.

Question 6.
List three qualities of cotton fibre.
Answer:
The three qualities of cotton fibre are:

1. It can absorb water and sweat.
2. It can be dyed in different colours and has good colour retention.
3. It is a soft and smooth fibre.

Question 7.
Explain how jute is obtained from the jute plant.
Answer:
The jute plant is normally harvested at flowering stage. The stems of harvested plants are bundled and immersed in water for 10 to 15 days. The stems rot and fibres are separated by hand. These fibres are converted into yarns to make fabrics.

Question 8.
List some qualities of jute.
Answer:
The qualities of jute are:

1. It is 100% biodegradable and recyclable.
2. It is strong and durable.
3. It can easily be blended with other fibres.

Question 9.
State the two steps involved in making fabrics from fibres.
Answer:
The fabrics are made from fibres in the following two steps:

• Fibres are first converted to yarn by the process of spinning.
• Fabric is made from yam by the process of weaving or knitting.

Question 10.
Why are cotton and woollen clothes rough whereas silk, rayon, nylon and polyester smooth to touch?
Answer:
Roughness of cotton and woollen fibre is due to presence of many folds and uneven surfaces in it. Silk, rayon, nylon and polyester are smooth because they have long plain, fibre structure.

Question 11.
Why primitive life was confined to the tropics? When it was possible for the people to migrate to colder regions?
Answer:
Primitive men and women had no idea about clothes and were at the mercy of their environment. Primitive life was confined mostly to the tropics where the climate was warm and no clothing was needed. Only after the invention of fire, it became possible for people to migrate to colder regions.

Question 12.
How are fibres classified?
Answer:
Fibres are classified on the basis of their origin and are mainly divided into two types:

• Natural fibres
• Synthetic fibres

Question 13.
What were the wearing of the people of Stone Age?
Answer:
During the Stone Age, people wore bark, leaves of trees or animal skins to keep themselves warm.

Question 14.
Explain about spinning.
Answer:
Spinning is the process of converting fibres into yarn by twisting the fibres using various machines. It is done in the way as the wicks are made from cotton wool at homes. Fibres are drawn out and twisted. It can be done both by hands and by machines. Manually, it is done with a hand spindle called takli or on a spinning wheel called charkha.

Question 15.
What is knitting?
Answer:
Knitting is usually done with a single yarn with the help of knitting needles to make a piece of fabric.

Fibre to Fabric Class 6 Extra Questions Long Answer Type

Question 1.
Differentiate between natural fibres and synthetic fibres.
Answer:

Natural fibres	Synthetic fibres
(i) Fibres obtained from natural resources are called natural fibres. (ii) It can absorb water and sweat. (iii) It takes long time to be converted from raw form to usable form. (iv) Some examples are cotton, wool, silk, jute, flax, etc.	(i) Fibres that are manufactured artificially in factories using different chemicals are called synthetic fibres. (ii) It cannot absorb water and sweat. (iii) It can be easily converted from raw form to usable form. (iv) Some example are rayon, nylon, terylene, polyester, etc.

Question 2.
Differentiate between cotton and jute fibre.
Answer:

Cotton fibre	Jute fibre
(i) Cotton fibre is obtained from the flowers of cotton plants.	(i) Jute fibre is obtained from the stem of jute plants.
(ii) Black soil is most suitable for growing cotton plants.	(ii) Alluvial soil is most suitable for growing jute plants.
(iii) The cotton plant requires warm climate.	(iii) Jute plant requires warm and humid climate.
(iv) Cotton is mainly cultivated in Punjab, Rajasthan, Gujarat, Tamil Nadu, Karnataka, Andhra Pradesh, etc.	(iv) Jute is mainly cultivated in Bihar, Assam, Odisha, Andhra Pradesh, West Bengal, etc.
(v) Cotton is used to make clothes, bedsheets, cooking oil and artificial fibres like rayon.	(v) Jute is used to make ropes, mats, packaging, material, sacks.

Question 3.
In which season is cotton planted? What is its course of growth?
Answer:
It is planted in early spring. Cotton plants grow steadily and soon become bushes of 3 to 6 feet high. After about 2 months, they bear white or yellowish flowers which turn pink or red after a few days. The petals of the flowers fall, leaving behind tiny green seeds. This later grows into spherical shaped structure of the size of wallnut, which is called cotton ball.

As the cotton balls grow steadily the seeds and fibres grow inside. On maturing, the green balls begin to turn brown. On complete maturation, they become ready to burst open, exposing the white fibres. As the fibres dry in the sun, they become fluffy.

Question 4.
What is retting? Explain how fibres are obtained from the jute plants.
Answer:
Jute plants are cut at the flowering stage when plants are 8-10 feet high. The cut plants are grouped at different places in the field for few days when most of the leaves dry up and fall down. The plants are now tied into small bundles.

The bundles are made to sink in stagnant water of a pond for few days when the gummy skin rots out to separate fibres. This process is called retting. Fibre is extracted from the retted jute by hand, with jerks and pulls. The dried fibres are then tied together in small bundles.

Question 5.
What is a loom? For what purpose is it used? What is the difference between handloom and power loom?
Answer:
A device which is used for making fabrics by weaving yarn or threads is called a loom. The weaving of yarn to make fabrics is done by using looms.

The difference between handloom and power loom are:

• Handloom: It is a cloth weaving machine which is manually operated. In many parts of our country, handloom cloth is produced in large quantities.
• Powerloom: It is a medium-sized weaving machine that run on power supply. It is used to produce cloth on large scale in cloth producing industries.

Question 6.
What is meant by fibre and fabric? Describe the process of making fabrics from fibre.
Answer:
Fibre: A very thin, thread like strand from which cloth is made is called fibre.
Fabric: Fabric means a woven material resembling woven cloth. Fabric is made up of yarns.
Making Fabric: The two main processes used for making fabrics are knitting and weaving.

1. Knitting: The process of making fabric by forming a series of connected loops of yarn is called knitting. This process is used for making sweaters, woollen caps, gloves, etc.
2. Weaving: The process of making fabric by crossing two sets of yarns over and under each other is called weaving. This process is used for making shirts, trousers, T-shirts, etc.

Question 7.
What are the three stages in history of the development of clothing material?
Answer:
In terms of raw materials, cloth making was developed in three stages. The first stage was cloth from plant fibres, such as flax, cotton, nettles and inner bark of the trees. The second stage began with the use of animal fibres especially wool and silk. Silk came to various parts of the world from China.

The third stage in the history of clothing began in the late 19th century with the development of man-made or synthetic fibres like rayon, nylon and polyester. Now man-made fibres combined with other animals with or without plant fibres are used for making clothes for improved strength, wearing ability and other qualities.

Fibre to Fabric Class 6 Extra Questions HOTS

Question 1.
While going to kitchen for cooking, which natural fibre do you think is best to wear? Why?
Answer:
Cotton fibre is the best fibre to wear during cooking because in case of any accidental fire it does not stick with the body.

Question 2.
Which type of dress material would you like to wear in summer?
Answer:
In summer we would like to wear dress materials made up of cotton and having light colour.

Question 3.
Which fibre do you think absorb the water most-cotton, nylon, polyester, wool and silk?
Answer:
Wool have maximum water absorbing capacity.

Question 4.
Why burning of silk and wool gives odour of hair and charred meat but burning of synthetic yarn gives odour that of plastics?
Answer:
Silk or wool are obtain from animals so they have characteristic odour of burning meat and hair respectively. Synthetic fibres are artificial fibre made up of polymers as in case of plastics so they also smell like plastics.

Question 5.
Why the process of retting is needed in process of harvesting jute?
Answer:
Process of retting helps in separation of pulpy material of the stem from the jute fibres.

Fibre to Fabric Class 6 Extra Questions Value Based (VBQs)

Question 1.
Class VI students were going to a picnic in the month of June. Shalini wore a beautiful synthetic dress. When Shalini’s friend Ria arrived, she praised her dress and suggested that though her dress is very beautiful but she won’t feel comfortable in the picnic. She must wear a cotton dress.
(a) Write some properties of cotton cloth.
(b) Write some properties of synthetic cloth.
(c) Why do you think Ria suggested Shalini to wear cotton cloth?
(d) What value of Ria is shown here?
Answer:
(a) Cotton cloth are good absorbent of moisture, comfortable, soft, have no pronounced lustre and easily creasable.
(b) Synthetic cloth are less absorbent of moisture, not skin friendly, durable, have lustre, crease- resistant, moth resistant, cheap, etc.
(c) Ria suggested Shalini to wear cotton cloth because it was the summer season and synthetic clothes are less absorbent of moisture due to which Shalini might not feel comfortable.
(d) Ria is bothering, caring, helpful with scientific temperament.

Question 2.
While doing an experiment to see burning characteristics of various fibre Prakash hold the cotton fibre in his hand and was about to burn it on the burner. On seeing this, his classmate Ratan stopped him immediately and asked to use tong to hold the fibres.
(a) What is fibre?
(b) Name any three natural fibres.
(c) What are the burning characteristics of the above three fibres?
(d) What value of Prakash is shown here?
Answer:
(a) Fibres are the thread-like structures that are obtained from animals or plants sources or are synthesised artificially.
(b) Cotton, silk and jute.
(c) Cotton and jute burn with the odour of burning paper while silk burns with a characteristic smell of charred meat. Prakash lacks scientific aptitude, careless, not attentive in class.

In this page, we are providing Components of Food Class 6 Extra Questions and Answers Science Chapter 2 pdf download. NCERT Extra Questions for Class 6 Science Chapter 2 Components of Food with Answers will help to score more marks in your CBSE Board Exams. https://ncertmcq.com/extra-questions-for-class-6-science/

Class 6 Science Chapter 2 Extra Questions and Answers Components of Food

Extra Questions for Class 6 Science Chapter 2 Components of Food with Answers Solutions

Components of Food Class 6 Extra Questions Very Short Answer Type

Class 6 Science Chapter 2 Extra Questions Question 1.
Which nutrients do we get from milk?
Answer:
Milk is the richest source of proteins, minerals, vitamins, etc.

Components Of Food Class 6 Extra Questions And Answers Question 2.
List the various types of vitamins.
Answer:
The various types of vitamins are: Vitamin A, Vitamin B, Vitamin C, Vitamin D, Vitamin E and Vitamin K.

Components Of Food Class 6 Questions And Answers Question 3.
Write the other name for roughage.
Answer:
The other name for roughage is ‘dietary fibres’.

Ncert Class 6 Science Chapter 2 Extra Questions Question 4.
What are the uses of carbohydrates in our body?
Answer:
Carbohydrates provide energy to our body.

Extra Questions For Class 6 Science Chapter 2 Question 5.
List some common sources of carbohydrates.
Answer:
Some common sources of carbohydrates are sweet potatoes, sugar, wheat, honey, rice, maize, millet, etc.

Components Of Food Class 6 Worksheet With Answers Question 6.
Name two food materials which contain a lot of water.
Answer:
The two food materials which contain a lot of water are melons and tomatoes.

Components Of Food Question Answer Question 7.
Name the food materials which contain fat.
Answer:
The food materials which contain fat areghee, butter, egg, cheese, etc.

Components Of Food Class 6 Questions And Answers Pdf Question 8.
What do we call the food which contains protein?
Answer:
The food containing protein is known as bodybuilding food.

Components Of Food Extra Questions Question 9.
Why do we need vitamins in our food?
Answer:
Vitamins are important for the normal growth and development of the body. This is why we need vitamins in our food.

Class 6 Science Ch 2 Extra Questions Question 10.
What is the percentage of water in our body?
Answer:
Percentage of water in our body is 70%.

Class 6 Science Chapter 2 Extra Questions And Answers Question 11.
Which colour indicates that the food contains starch?
Answer:
A blue-black colour indicates that the food contains starch.

Class 6 Chapter 2 Science Extra Questions Question 12.
What are the main carbohydrates found in our food?
Answer:
The main carbohydrates found in our food are in the form of starch and sugars.

Components Of Food Class 6 Extra Questions Question 13.
Name two energy-producing nutrients.
Answer:
The two energy-producing nutrients are carbohydrates and fats.

Ch 2 Science Class 6 Extra Questions Question 14.
Name the vitamin present in orange and lemon.
Answer:
The vitamin present in orange and lemon is Vitamin C.

Components Of Food Class 6 Question Answer Question 15.
Name the main constituent of roughage.
Answer:
Cellulose is the main constituent of roughage.

Question 16.
Which minerals are needed to build our bones and teeth?
Answer:
Calcium and phosphorus.

Question 17.
Name the deficiency disease caused by deficiency of iron.
Answer:
The deficiency of disease caused by the deficiency of iron is anaemia.

Question 18.
Name the foods which are rich in dietary fibres.
Answer:
The foods which are rich in dietary fibres are spinach, cabbage, ladyfinger, etc.

Question 19.
What indicates that food contains fat?
Answer:
An oily patch on paper shows that the food items contain fat.

Components of Food Class 6 Extra Questions Short Answer Type

Question 1.
What are nutrients?
Answer:
The food we eat gives us energy to live. Food contains substances that are useful to our body. These are called nutrients.

Question 2.
Name the different food groups.
Answer:
Food can be broadly subdivided into following three groups:

1. Energy-giving foods
2. Bodybuilding foods
3. Protective foods

Question 3.
What is the function of carbohydrates in our body?
Answer:
The functions of carbohydrates in our body are:

1. Carbohydrates provide us energy to work.
2. It acts like fuel for the body.
3. It gets turned into sugars in the body.
4. Sugar is then burnt to release energy.

Question 4.
What are simple carbohydrates?
Answer:
Carbohydrates which provide instant energy and are soluble in water are called simple carbohydrates. They are obtained from fruits such as grapes, milk, etc.

Question 5.
What are complex carbohydrates?
Answer:
The insoluble compounds such as starch are known as complex carbohydrates. They are found in wheat, maize, millet, potatoes, etc.

Question 6.
What are the main functions of protein in our body?
Answer:
The main functions of protein in our body are to supply materials that are needed to make new cells by the body and to repair the damaged cells.

Question 7.
How will you test for starch in a food sample?
Answer:
A small quantity of food sample is taken. Then 2-3 drops of iodine solution is added on it. Appearance of blue-black colour indicates that food sample contains starch.

Question 8.
What are the functions of vitamins?
Answer:
Vitamins only help in the proper utilization of other nutrients such as carbohydrates and fats. Vitamins that help enzymes in their action are known as co-enzymes.

Question 9.
What is roughage?
Answer:
Roughage is the indigestible portion of food derived from the plants. It helps our body to get rid of undigested food. The main sources of roughage are pulses, potatoes, fresh fruits, etc.

Question 10.
What happens when the water in which food materials is boiled during cooking is drained out?
Answer:
If the excess water in which a food material is boiled during cooking is drained out then some of the proteins, water-soluble vitamins and considerable amount of minerals present in the food are lost.

Question 11.
What is balanced diet?
Answer:
A diet in which every component of food (carbohydrates, fats, proteins, vitamins and minerals, water and roughage) are present in proper amount is known as balanced diet.

Question 12.
What is marasmus?
Answer:
Marasmus is a deficiency disease which is caused by the deficiency of proteins and carbohydrates in children.

Question 13.
What is obesity?
Answer:
When a person eat too much fat-containing foods, the fats get deposited in his body and he may end up suffering from a condition called obesity.

Components of Food Class 6 Extra Questions Long Answer Type

Question 1.
Why does our body need nutritious food?
Answer:
We know that food is needed for the growth of our body. It gives us energy to work and play. It gives us resistance against diseases. The components of food are carbohydrates, proteins, fats, vitamins, minerals, fibres and water.

Nutrients are the components of food that the body needs in adequate amounts for growth, to reproduce and to lead a normal healthy life. All types of nutrients have their own functions to perform, but the different nutrients must act together. So, nutritious food provides energy for all the activities of body.

Question 2.
What are the roles of
(a) carbohydrates?
(b) fats?
(c) vitamins?
(d) minerals?
Answer:
(a) Role of carbohydrates- Carbohydrates provide us energy.
(b) Role of fats- Fats provide us energy.
(c) Role of vitamins- Vitamins are necessary for various psychological activities. They keep us healthy and protect us from many diseases. They are required for the proper functioning of body parts.
(d) Role of minerals- Minerals helps to make our bones and teeth strong. They also helps to prepare blood.

Question 3.
What are the various functions of protein?
Answer:
Functions of proteins are:

1. Proteins are the building materials of our body.
2. Proteins are the constituents of enzymes.
3. Proteins make our muscles, skin, hair and nails.
4. Proteins form a red pigment in blood which acts as oxygen carrier.
5. Proteins like fibres help in clotting of blood.

Question 4.
Write some properties of balanced diet.
Answer:
A balanced diet has following properties:

1. It is rich in essential nutrients such as vitamins, minerals and certain amino acids.
2. It provides enough material to take care of the needs of growth, repair and replacement of cells, tissues and organs in the body.
3. It provides energy required by the body.

Question 5.
Write the important functions of water in our body.
Answer:
The important functions of water in our body are:

1. Water is needed to transport digested food to the body cells.
2. Water is needed to transport important chemicals such as hormones around the body.
3. Water is used to get rid of waste products from the body.
4. Water is used to control and regulate the temperature of the body.
5. Water prevents dehydration in our body.

Question 6.
What is malnutrition? What are its harmful effects?
Answer:
Malnutrition is the physical state of person resulting either from an imbalanced diet or from physical inability to absorb nutrients properly due to some diseases.

The harmful effects of malnutrition are:

1. Deficiency of any of the nutrients in our diet causes diseases or illness.
2. Deficiency of protein and carbohydrates in children causes kwashiorkor and marasmus.
3. It retards the mental growth of children.
4. It also retards the normal growth in height and weight.

Question 7.
What is the effect of protein deficiency on the health of children?
Answer:
If a child does not get enough protein in his food for long time, he is likely to suffer from protein deficiency. Children suffering from protein deficiency have light brown hair, face like that of an old man, always hungry, have distended stomach. They are underweight and skinny with very little flesh on bones. The disease is called Kwashiorkor.

Question 8.
Write the sources and deficiency diseases of the vitamins A, B, C, D, E and K.
Answer:

Vitamin	Sources	Deficiency Disease
1. Vitamin A	Milk, butter, yellow fruits and vegetables, egg yolk, liver oils of fish.	Night blindness, Xerophthalmia
2. Vitamin B	Egg, green vegetables, yeast, germinating seeds, meat, milk, etc.	Beriberi
3. Vitamin C	Citrus fruits, green and red peppers	Scurvy
4. Vitamin D	Egg, fish, liver oil, sunlight, milk, etc.	Rickets
5. Vitamin E	Eggs, sweet potato, sprouted grains, meat, etc.	Damage to nerve conduction
6. Vitamin K	Egg yolk, liver, cheese, tomato, cabbage, cauliflower	Improper coagulation of blood

Question 9.
Write the various wasteful pre-cooking practices which lead to the loss of nutrients.
Answer:
The various wasteful pre-cooking practices which lead to the loss of nutrients are:

1. Repeated washing of rice and pulses: This removes the water-soluble vitamins and some minerals from them. This lowers their nutritive value.
2. Washing of fruits and vegetables after they have been peeled and cut: This removes the water-soluble vitamins and some minerals from them. This lowers their nutritive value.
3. Taking off thick peels from fruits and vegetables: The skin of most fruits and vegetables contains vitamins and minerals. In some homes, thick peels are taken off from the fruits and vegetables which lead to the loss of vitamins and minerals.

If the peeling of fruits and vegetables has to be done, the peels removed should be as thin as possible to prevent the major loss of vitamins and minerals.

Question 10.
Write the list of mineral deficiency diseases and their symptoms.
Answer:

Mineral	Deficiency Disease	Symptoms
Calcium	Rickets	Bent legs, pigeon-type chest and weak bones, etc.
Iodine	Cretinism (in children) Goiter(in adults)	Retarded physical growth and mental disability. Neck of the person appears to be swollen.
Iron	Anaemia	A person looks pale, feels very weak, tires easily and looses weight. His nails also turn white.

Components of Food Class 6 Extra Questions HOTS

Question 1.
When we are ill for a long duration, why doctor recommend us to take glucose and fruit juices?
Answer:
When we are ill for a long duration, doctor recommend us to take glucose as it is rich in carbohydrate, and fruit juices are rich in carbohydrates and vitamins which are necessary for instant energy requirement and to fight against diseases.

Question 2.
A person living in hilly areas suffered from swollen neck. He is suffering from which disease and what is the probable cause of this disease?
Answer:
The person is suffering from goiter and the probable reason is the absence of iodine mineral in the food of that region and the salt used by him also lacks iodine.

Question 3.
Why we need to take roughage and water though these does not provide any nutrients to us?
Answer:
Roughage and water helps in bowel and nutrients movement within the body. So they are important.

Question 4.
While using iodine in the laboratory, few drops of iodine fell on Ritu’s shirt. The drops of iodine turned blue-black. Can you tell the possible reason?
Answer:
Ritu’s shirt might have been starched and starch turns blue-black with iodine

Components of Food Class 6 Extra Questions Value Based Question (VBQs)

Question 1.
Sonam while helping her mother in kitchen work saw that her mother cut the vegetables and then washed them. On seeing that she immediately stopped her mother and told her that one should always wash vegetables prior to cutting. Because washing vegetables after they had been cut leads to nutrients loss.
(a) What are the different types of nutrients found in food?
(b) On washing cut vegetables which kind of nutrients are lost?
(c) What value of Sonam is seen here?
Answer:
(a) Carbohydrates, fats, vitamins, minerals and proteins.
(b) Water-soluble nutrients like some of the minerals and water-soluble vitamins, i.e., vitamin C and B-complex get lost.
(c) Sonam is helping, obedient, intelligent and having scientific aptitude.

Here we are providing The Rebel Extra Questions and Answers Class 7 English Honeycomb, Extra Questions for Class 7 English was designed by subject expert teachers.

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The Rebel Extra Questions and Answers Class 7 English Honeycomb

The Rebel Extra Questions and Answers Short Answer Type

The Rebel Extra Questions Class 7 Question 1.
What does the rebel do when everybody talks during the lessons?
Answer:
When everybody talks during the lessons, the rebel becomes absolutely silent.

The Rebel Poem Extra Questions Class 7 Question 2.
Why does the rebel choose to» wear fantastic clothes?
Answer:
When the rebel sees everybody dressed in uniform, the rebel chooses to wear fantastic clothes.

Rebel Extra Questions Class 7 Question 3.
Why do rebel always contradict the others?
Answer:
The rebels always contradict others because they wish to stand out to be different from the rest of the crowd. They refrain themselves from being a part of crowd.

The Rebel Extra Questions and Answers Reference to Context

The Rebel Poem Class 7 Extra Questions Question 1.
When everybody has short hair,
The rebel lets his hair grow long.
When everybody has long hair,
The rebel cuts his hair short.
When everybody talks during the lesson,
The rebel doesn’t say a word.
When nobody talks during the lesson,
The rebel creates a disturbance.

Explanation
The poet lists various contradictory activities of the rebel. He says that when everybody has short hair, the rebel grows his hair long and when long hair is in, the rebel cuts his hair short. He stays silent in the lesson when everyone is discussing a matter. When it is time for general discussion, the rebel remains attentive to the teacher and does not participate in the discussion.

(i) How does the length of hair reflects the rebellious attitude?
(ii) What do rebels do when everybody has long hair?
(iii) How differently do rebels behave during the lesson?
(iv) What does the rebel try to show by his gesture?
Answer:
(i) When everybody prefers to have short hair, rebel takes a different route.
(ii) The rebels cut their hair short to segregate themselves from others.
(iii) The rebel don’t speak when others are talking and they disturb others if nobody talks.
(iv) The rebel wants to be noticed distinctly so they try to catch the attention by going against the flow.

The Rebel Class 7 Extra Questions Question 2.
When everybody wears a uniform,
The rebel dresses in fantastic clothes.
When everybody wears fantastic clothes,
The rebel dresses soberly.
In the company of dog lovers,
The rebel expresses a preference for cats.
In the company of cat lovers,
The rebel puts in a good word for dogs.

Explanation
When people wear uniforms, he puts on showy dresses and when people wear colourful dresses, he does the opposite. In the company of cat lovers, he prefers dogs and in the company of dogs, he prefers the otherwise.

(i) When do rebels wear fantastic clothes?
(ii) Who is the preference of a rebel in a cat lover’s gathering?
(iii) What do rebels aim at while preferring just opposite choices?
(iv) What is a ‘good word’?
Answer:
(i) To break the norms and discipline, rebels wear fantastic clothes when others wear uniform.
(ii) Dog is the most preferred by rebels in presence of cat lovers.
(iii) Rebels aim at showing non-conformist behaviour in contrasting choice.
(iv) A ‘Good word’ is about speaking good qualities of a person.

The Rebel Extra Questions Class 7 Question 3.
When everybody is praising the sun,
The rebel remarks on the need for rain.
When everybody is greeting the rain,
The j-ebel regrets the absence of sun.
When everybody goes to the meeting,
The rebel stays at home and reads a book.
When everybody stays at home and reads a book,
The rebel goes to the meeting.

Explanation
When it is the general desire for rain, he necessitates the importance of sun and when people want the sunbath, he goes for rain. When others attend meetings, he stays home and when others stay home, he attends meetings.

(i) Why do rebels assert for rain?
(ii) Explain ‘when everybody is greeting the rain’.
(iii) When do rebels regret the absence of sun?
(iv) Why do rebels stay at home?
Answer:
(i) The rebels assert for rain because they want to stand out from the crowd.
(ii) Generally people greet rain to save them from scorching heat.
(iii) The rebels regret the absence of sun when everybody expects rain.
(iv) The rebels choose to stay at home when other people are socializing.

The Rebel Poem Extract Based Questions Class 7 Question 4.
When everybody says, Yes please,
The rebel says, No thank you.
When everybody says, No thank you,
The rebel says, Yes please.
It is very good that we have rebels.
You may not find it very good to be one.

Explanation
He says “Yes” when he should say “No”; when he should say “Yes”. In short, each action of the rebel is stimulated by self exhibition and inexperienced attitude of adolescence. The poet has remarkably described the non-conformist behaviour of the rebel in a light, funny and casual manner. The poet says that the individual freedom is very important and we must learn to accept it in society. No two persons can be equal.

(i) Why do rebels refute to behave normally?
(ii) ‘The common gesture of greeting is violated by rebels’. Do you agree?
(iii) Explain ‘It is very good … rebels’.
(iv) How far is the poet successful in describing ‘a rebel’?
Answer:
(i) Rebels refuses to behave normally because of their contradictory and self assertive behaviour.
(ii) The rebels don’t say thank you when they have to. Their action of rebel is stimulated by self-exhibition.
(iii) The poet says that individual freedom is important and thus it must be accepted by the society.
(iv) The poet describes the non-conformist behaviour of the rebel in a light, funny, and casual manner.

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We have created the most comprehensive The Squirrel Poem Class 7 Questions and Answers. These Questions and Answers are help to score more marks in your Board Exams.

The Squirrel Extra Questions and Answers Class 7 English Honeycomb

The Squirrel Extra Questions and Answers Short Answer Type

The Squirrel Was Sitting On A Tree Answer Class 7 Question 1.
What does a grey overcoat refer to?
Answer:
The squirrel’s body is being refered to a grey overcoat.

The Squirrel Poem Class 7 Extra Questions Question 2.
How does squirrel eat a nut?
Answer:
The squirrel sits up straight to eat a nut.

The Squirrel Poem Extra Questions Class 7 Question 3.
How do squirrels usually sit?
Answer:
The squirrel usually sits and runs with a bended back.

The Squirrel Extra Questions Class 7 Question 4.
What did the squirrel do if someone came too close to his tree?
Answer:
The squirrel would run away instantly if someone try to come too close to his tree.

The Squirrel Class 7 Extra Questions Question 5.
The poet talks about a small creature with sensitivity. Do you agree or not.
Answer:
The poem is a reflection of the poet’s observation we come across in our day to day surrounding. A squirrel is the most commonly found animal that we see around us. Yet, very few of us would have thought of it as a subject matter.

The Squirrel Poem Class 7 Questions And Answers Question 6.
Why does the poet say the squirrel ‘wore a question mark for tail’? Draw a squirrel or find a picture of a squirrel sitting on the ground. How would you describe its tail?
Answer:
The Poet said that the squirrel “wore a question mark for a tail” because its tail is twisted appearing like a question mark.

The Squirrel Question Answer Class 7 Question 7.
Do we usually say that an animal ‘wears’ a tail? What do we say? (Think: Does an animal wear a coat? Consult a dictionary if you like, and find out how ‘wear’ is used in different ways.)
Answer:
No, we do not usually say that an animal ‘wears’ a tail. We usually say that animal ‘has’ a tail.

The Squirrel Poem Class 7 Extra Questions And Answers Question 8.
“He liked to tease and play”. Who is teasing whom? How?
Answer:
The squirrel is teasing the poet and his friends. When poet and his friends ran around the tree on which the squirrel is sitting, it went the other way teasing and playing with them.

The Squirrel Extra Questions and Answers Reference to Context

Extra Questions Of The Squirrel Class 7 Question 1.
He wore a question mark for tail,
An overcoat of gray,
He sat up straight to eat a nut.

Explanation
The tail of the squirrel is twisted like a question mark. Its colour is grey and while eating a nut it sit straight on its legs and hold the nut in its forearms.

(i) Does a squirrel wear a overcoat?
(ii) What is the shape of squirrel’s tail?
(iii) How does it eat a nut?
(iv) What is its skin colour?
(v) Choose the past tense of wear from the above lines.
Answer:
(i) No, it does not.
(ii) Its shapes is twisted into a question mark.
(iii) It eats a nut by sitting on its hind legs
(iv) Its skin colour is grey.
(v) Wore.

Extra Questions Of Poem The Squirrel Class 7 Question 2.
He liked to tease and play,
And if we ran around his tree,
He went the other way.

Explanation
The poet loves the game of hide and seek between him and the squirrel. If he went too close to the squirrel, the squirrel would go and hide in the other direction.

(i) What does he like to do?
(ii) Why does he went the other way?
(iii) Why is the squirrel scared?
(iv) Name the poem.
(v) Name the poet.
Answer:
(i) He likes to tease and play.
(ii) He went the, other way when he see human being around the tree.
(iii) The squirrel is scared because of the poet.
(iv) The poem name is ‘The squirrel’.
(v) The poets name is ‘Mildred Bowers Armstrong’.