Collective Nouns Exercises for Class 4 CBSE with Answers

This grammar section explains English Grammar in a clear and simple way. There are example sentences to show how the language is used.

Collective Nouns Exercises for Class 4 CBSE with Answers PDF

Fundamentals

  • Collective nouns—such as family, committee and class—name groups that are made up of individuals.
  • A collective noun may be either singular or plural, depending on how the group acts.
  • When the group acts together as one unit to do something, the group is considered singular.
  • When individuals within the group act differently or do different things at the same time, the collective noun is plural.
    Example:
    Singular : The team practices for the game on Friday.
    The jury eats lunch at the restaurant.
    Plural : The team change into their street clothes after the game.
    The jury often have different reactions to the case.

Presentation
Read the picture story.

A. Answer the following questions as per the story.

1. Which group had gathered around the circus arena? ___________
2. Which group is followed by the kennel of dogs? ___________
3. Which group elated everyone’s heart? ___________

B. Write down collective nouns from the story above.

1. A group of puppies is called a ___________
2. A group of people is called a ___________
3. A group of monkey is called a ___________
4. A group of lions is called a ___________
5. A group of elephants is called a ___________

Collective Nouns Worksheet with Answers for Grade 4

A. Circle the collective noun in each sentence that is describing the subject or noun. The first one has been done for you.

1. Pulling with all their might, a team of oxen hauled rocks.
2. Schools of fish swam quickly up the cool, mountain stream.
3. Herds of elephants ate the trees bare.
4. Colonies of beavers built the dams to hold back the flowing water.
5. Packs of wolves ran through the pine forest.
6. Pods of dolphins leaped out of the ocean.
7. Hives of bees gathered sweet nectar.

B. Match the collective nouns with their groups by writing the letter in the answer column. The first one has been done for you.

Collective Noun Answer Group or Unit
1. An agenda G A. of thieves stole the money.
2. A battery B. of kittens meowed for food.
3. Litters C. of juicy grapes from the vines.
4. The herd D. of elephants stomped through the lush jungle.
5. We each picked a bunch E. of tests is hard work.
6. The gaggle F. of geese squawked loudly.
7. A band G. of tasks was on my desk.

C. Write the matched pairs in a complete sentence. The first one has been done for you.

1. An agenda of tasks is on my desk.
2. ______________________
3. ______________________
4. ______________________
5. ______________________
6. ______________________
7. ______________________

D. Circle the collective noun that best fits in the sentence. The first one has been done for you.
1. The (classroom/herd) of students read the directions on the white board.
2. Sailing around the (flock/chain) of islands, the crew of sailors cheered.
3. Bears fish in the river as the (clouds/runs) of salmon swim upstream.
4. Slithering and hissing, the (pits/brigades) of snakes settled for sleep.
5. Running late, I ran up (flight/pod) of stairs in record time.
6. Looking up at the sky, I had a glimpse of the (packs/galaxies) of stars.
7. After the holidays, we had (colonies/heaps) of trash.

Fibre to Fabric Class 7 Notes Science Chapter 3

On this page, you will find Fibre to Fabric Class 7 Notes Science Chapter 3 Pdf free download. CBSE NCERT Class 7 Science Notes Chapter 3 Fibre to Fabric will seemingly help them to revise the important concepts in less time.

CBSE Class 7 Science Chapter 3 Notes Fibre to Fabric

Fibre to Fabric Class 7 Notes Understanding the Lesson

1. Silk and wool are animal fibres because silk comes from silkworms and wool is obtained from fleece, i.e., hairs of sheep, goat, yak and some other animals.

2. The wool-yielding animals bear a thick coat of hair on their body. Hair keeps these animals warm because hair trap air which does not let the heat release from their body due to its poor conductivity.

3. The hairy skin of the sheep has two types of fibres that form the fleece:

  • the coarse beard hair; and
  • the fine soft under hair close to the skin.
  • The fine hair provides the fibres for making wool.

4. Some breeds of sheep have only fine under-hair. Their parents are specially chosen to give birth to sheep with fine under-hair only. This process of selecting parents for obtaining special characters in their offsprings, such as soft under-hair in sheep, is called selective breeding.

5. Apart from sheep, wool is also obtained from yak, angora goat, camel, Lama and alpaca.

6. Sheep are reared in many parts of our country for wool. Certain breeds of sheep have thick coat of hair on their body which yields good quality of wool. Once the reared sheep have developed a thick growth of hair, hair is shaved off for obtaining wool.

7. Wool production involves various steps. The hair of the wool yielding animals is cut and processed into wool. Different steps are shearing, scouring, sorting, grading, dyeing and making yarn.

8. The rearing of silkworms for getting silk is called sericulture.

9. Silkworms are caterpillars of silk moth which feed on leaf of mulberry.

10. During their life cycle, the worms spin cocoons of silk fibres.

11. Silk fibres are made of protein.

12. Silk fibres from cocoons are separated out by reeling the silk.

13. Reeling is done in special machines, which unwind the threads or fibres of silk from the cocoon. Silk fibres are then spun in threads and then into cloth.

Class 7 Science Chapter 3 Notes Important Terms

Cocoon: Caterpillar completely covers itself by silk fibres and turns into pupa. This covering is known as cocoon.

Fleece: Hair on the body or outer coat of sheep or yak is called fleece. It is the source of wool.

Reeling: The process of taking out threads from the cocoon for use as silk is called the reeling the silk.

Scouring: The sheared skin with hair is thoroughly washed in tanks to remove grease dust and dirt. This is called scouring.

Sericulture: The production of raw silk by raising silkworms is called sericulture.

Shearing: The process of removing fleece of the sheep along with a thin layer of skin from its body is called shearing.

Silkmoth: The silk moth develops from pupa inside the cocoon. The silk yarn or thread is obtained from the cocoon of the silk moth.

Sorting: Separation of hairy skin in different textures is called sorting.

Caterpillars: The female silk moth lays eggs; from which worm-like larva called caterpillars or silkworms are hatched.

Mulberry silk moth: The most common silk moth, Bombyx mori, is known as mulberry silk moth.

Light Class 7 Notes Science Chapter 15

On this page, you will find Light Class 7 Notes Science Chapter 15 Pdf free download. CBSE NCERT Class 7 Science Notes Chapter 15 Light will seemingly help them to revise the important concepts in less time.

CBSE Class 7 Science Chapter 15 Notes Light

Light Class 7 Notes Understanding the Lesson

1. Light is a form of energy which enables us to see objects from which it comes or from which it is reflected.

2. The objects which emit light of their own are known as luminous objects, g., the sun, lamp, candle, etc.

3. The objects which do not emit light of their own are known as non-luminous objects, g., chair, table, window, etc.

4. Light always travels in a straight line and this property of light is called rectilinear propagation of light.

5. Light falls on the surface of an object and the object sends the light back. This process of sending back the rays of light which fall on the surface of an object is called reflection of light.

6. The ray of light which falls on an object is called incident ray and the ray of light which is sent back by an object is called reflected ray.

7. A highly polished surface which is smooth enough to reflect a good fraction of light incident on it is called mirror.

8. An optical appearance produced by light or other radiations from an object reflected in the mirror or re­fracted through a lens is called

9. The image which can be formed or obtained on the screen is called a real image.

10. The image which cannot be obtained on the screen is called a virtual image.

11. The image formed by a plane mirror is erect, virtual and of the same size as the object.

12. Those mirrors whose reflecting surfaces are spherical or curved are called spherical mirrors.

13. There are two types of spherical mirrors:

  • Concave mirror
  • Convex mirror

14. When the reflecting surface of the spherical mirror is curved inwards, then it is called concave mirror.

15. A concave mirror can form a real and inverted image. When the object is placed very close to the mirror, the image formed is virtual, erect and magnified.

Light Class 7 Notes Science Chapter 15

16. When the reflecting surface of the spherical mirror is curved outwards, then it is called convex mirror.

17. A convex mirror form erect, virtual, smaller size image of the object.

18. Lens is a piece of glass or transparent material with curved sides.

19. A lens that is thicker in the middle and thinner at the edges is called a convex lens. It is also known as magnifying glass.

20. A convex lens can form real and inverted image. When the object is placed very close to the lens, the image formed is virtual, erect and magnified.

21. A lens that is thinner in the middle and thicker at the edges is called a concave lens.

22. A concave lens always forms erect, virtual and smaller image than the object.

23. White light is composed of seven colours. These are red, orange, yellow, green, blue, indigo and violet (acronym: VIBGYOR).

Class 7 Science Chapter 15 Notes Important Terms

Concave lens: It is also known as diverging lens. It is thinner at the centre than at the edges. It diverges a beam of light on refraction through it. Concave lenses have a virtual focus.

Concave mirror: The type of mirror in which reflecting surface of the spherical mirror is curved inwards, is called concave mirror.

Convex lens: Convex lenses are thicker at the centre and thinner at the edges. It converges a parallel beam of light on refraction through it. It has real focus.

Convex mirror: The type of mirror whose reflecting surface of the spherical mirror is curved outwards, is called convex mirror.

Erect image: When the image formed have same direction as that of object, then the formed image is called erect image.

Magnified image: When the size of image is larger than the object, then it is called magnified image.

Magnifying glass: A magnifying glass is a convex lens that is used to produce a magnified image of an object.

Prism: Prism is a transparent glass pyramid, bounded by four triangular surface that separates white light into a spectrum of colours.

Rainbow: A band of seven colours formed in the sky in the direction opposite to the sun due to rain or presence of water droplets in the atmosphere.

Real image: The image which can be formed or obtained on the screen is known as real image.

Rearview mirror: Rearview mirror is a mirror in automobiles and other vehicles, designed to see a virtual, upright and diminished image of the traffic behind them. For rearview mirror, convex mirror is used.

Side mirror: The rearview mirror is used as side mirror in motor vehicles.

Spherical mirror: ’he mirrors which have curved surfaces are known as spherical mirrors.

Virtual image: The image that cannot be obtained on the screen is known as virtual image.

Nutrition in Animals Class 7 Notes Science Chapter 2

On this page, you will find Nutrition in Animals Class 7 Notes Science Chapter 2 Pdf free download. CBSE NCERT Class 7 Science Notes Chapter 2 Nutrition in Animals will seemingly help them to revise the important concepts in less time.

CBSE Class 7 Science Chapter 2 Notes Nutrition in Animals

Nutrition in Animals Class 7 Notes Understanding the Lesson

1. All organisms including humans require food for growth, repair and functioning of the body.

2. Animal nutrition includes:

  • nutrient requirement,
  • mode of intake of food and,
  • its utilisation in the body.

3. Different organisms have different ways of taking food. For example, snakes swallow their prey, bees and hummingbirds suck nectar from the flowers, etc.

4. The human digestive system consists of the alimentary canal and secretory glands. The canal can be divided into various compartments

  • the buccal cavity,
  • food pipe or oesophagus,
  • stomach,
  • small intestine,
  • large intestine ending in the rectum and
  • the anus.

5. These parts together from the digestive tract.

6. The digestive tract and the associated glands (like salivary gland, liver, pancreas) together constitute the digestive system.

7. Nutrition is a complex process involving

  • ingestion,
  • digestion,
  • absorption,
  • assimilation and
  • egestion.

The process of taking food into the body is called

8. Digestion is the breakdown of complex components of food into simpler substances.

9. Digestion of food begins in the buccal cavity. Carbohydrate, like starch is digested in buccal cavity. Digestion of protein starts in the stomach.

10. The bile secreted from the liver, pancreatic juice from the pancreas and digestive juice from intestinal wall of small intestine complete the digestion of all components of food in the small intestine.

11. The digested food now passes into the blood vessels in the wall of the intestine. This process is called absorption.

12. The absorbed substances are transported via the blood vessels to different organs of the body where they are used to build complex substances such as the proteins required by the body. This is called

13. The removal of faecal matter through the anus time to time is called

14. Grass-eating animals quickly swallow grass which gets stored in the This partially digested food is called cud. This later returns to the mouth of animals in small lumps, and they chew it. This is called rumination and these animals are known as ruminants.

15. Amoeba ingests its food with the help of finger-like projections, called The food is digested in the food vacuole.

Class 7 Science Chapter 2 Notes Important Terms

Absorption: The passage of the digested food into the blood vessels in the wall of intestine is called absorption.

Amino acid: It is the basic building block of proteins.

Amoeba: It is a single-celled microscopic organism found in pond water.

Assimilation: It is the process in which the absorbed food is used for producing complex substances required by the body.

Bile: Bile juice is a kind of juice secreted by the liver.

Buccal cavity: The cavity of mouth, with all its internal parts like cheeks, teeth, tongue and salivary glands, is called buccal cavity.

Canines: These are two teeth one on each side of the incisors, which help in tearing the food materials.

Cellulose: It is a type of carbohydrate which is present chiefly in all plant tissues and fibres.

Digestion: The breakdown of complex components of food into simpler substances is called digestion.

Egestion: The removal of faeces through the anus from time to time is called egestion.

Fatty acid: It is an organic compound consisting of a long hydrocarbon chain and a terminal carboxylic acid.

Food vacuole: A membrane-bound vacuole (as in an Amoeba) in which ingested food is digested.

Gall bladder: It is a pear-shaped sac, which stores bile juice, and is attached to the undersurface of the right lobe of liver.

Glycerol: It is a colourless, sweet-tasting, viscous liquid, formed as a byproduct when fat is broken down.

Incisors: The front four teeth in each jaw adopted for cutting are called incisors.

Ingestion: The process of intake of food inside the mouth cavity is called ingestion.

Liver: It is a reddish-brown gland located on the upper right side of the abdomen. It secretes bile juice which helps in the digestion of fat.

Milk teeth: The first set of twenty teeth that appears by the age of two is called the set of milk teeth.

Molar: There are six teeth, three on each side of the jaw and just behind the premolars which help in grinding the food materials.

Permanent teeth: Milk teeth are replaced by a set of new teeth, which are thirty two in number, and are called permanent teeth.

Oesophagus: Oesophagus, or food pipe, is a tube-like structure that connect the mouth to the stomach.

Pancreas: It is a large cream-coloured gland located just below the stomach.

Premolar: There are four teeth, two on each side of the jaw which help in crushing the chewed food.

Pseudopodia: One or more finger-like projections in Amoeba which help in movement and ingestion of food is called pseudopodia.

Rumen: Rumen is the first stomach in grass-eating animals, which receives food or cud from the oesophagus immediately after being swallowed.

Ruminant: Animal, that digest food by the process of rumination is called a ruminant.

Rumination: A process by which partially digested food by ruminants returns to their mouth and are again chewed properly, is called rumination.

Salivary glands: Salivary glands are a pair of small and branched structures situated in the mouth cavity. They secrete saliva.

Villi: The inner walls of the small intestine have thousands of finger-like outgrowths called villi.

Saliva: It is a secretion from salivary gland which contains starch splitting enzyme, amylase, for breaking starch into sugar.

Electric Current and Its Effects Class 7 Notes Science Chapter 14

On this page, you will find Electric Current and Its Effects Class 7 Notes Science Chapter 14 Pdf free download. CBSE NCERT Class 7 Science Notes Chapter 14 Electric Current and Its Effects will seemingly help them to revise the important concepts in less time.

CBSE Class 7 Science Chapter 14 Notes Electric Current and Its Effects

Electric Current and Its Effects Class 7 Notes Understanding the Lesson

1. Electricity is an important source of energy in our day-to-day life.

2. An electric cell is a device which is used to generate electricity.

3. An electric cell has two terminals:

  • positive terminal
  • negative terminal.

4. A combination of two or more cells in which the positive terminal of one cell is connected to the negative terminal of the next cell, is called a battery (Fig. 1).

Electric Current and Its Effects Class 7 Notes Science Chapter 14

5. An electric circuit is an arrangement of different components such as the electric cell, battery, switch, electric bulb and wire. It is the complete path from one terminal of the electric cell through the bulb and back to the other terminal of the electric cell.

6. It is convenient to represent electric components by symbols. Using these, an electric circuit can be repre­sented by a circuit diagram.

7. When an electric current flows through a wire, the wire gets heated. It is the heating effect of current.

8. In the bulb there is a thin wire called the filament, which glows when an electric current passes through it, due to heating effect of current.

9. Other appliances where the heating effect of the current is used are electric iron, heater, immersion heaters, geysers, hairdryers, etc.

10. The amount of heat produced in a wire depends upon its material, length and thickness.

11. Wires made from special materials melt quickly and break when large electric currents are passed through them. These wires are used for making electric fuses.

12. When electric current passes through a wire, it behaves, like a magnet. This is the magnetic effect of the electric current. In fact, electric current can be used to make magnets.

13. An electromagnet is an example of the magnetic effect of the electric current. It is used in many devices like electric bell, loudspeakers, telephone, etc.

14. An electric bell mainly consists of an electromagnet, a hammer and a gong.

15. We should conserve energy today to avoid energy crisis later.

Class 7 Science Chapter 14 Notes Important Terms

Battery: Battery is a combination of two or more cells in which the positive terminal of one cell is always joined to the negative terminal of other cell.

Electrical components: Electric components are basic devices which connect together to make an electric circuit. For example, switch, battery, bulb, etc.

Circuit diagram: A circuit diagram is a graphical representation of an electric circuit which is drawn using symbols of different electrical components.

Cell holders: Cell holders are two or more compartments which hold the cells to make a battery. Cells are placed in them properly, such that the positive terminal of one cell is connected to the negative terminal of the next cell.

Filament: Filament is a thin wire in the bulb which glows when an electric current passes through it.

Element: The coil of wire in an electric room heater or an electric heater is called an element.

Electric fuses: An electric fuse is a safety device which prevents damages to electric circuits and possible fires. It is made from some special materials which melt quickly when large electric currents are passed through them.

Heating effect of current: When a wire get hot when an electric current passes through it, is called the heating effect of current.

Magnetic effect of current: When an electric current passes through a wire, it behaves like a magnet. This is called the magnetic effect of current.

Electromagnet: The magnet made by using an electric current is called electromagnet. It consists of a coil of insulated wire wrapped around a piece of iron that is magnetized only when electric current is passed through the coil.

Electric bell: An electric bell is a device based on magnetic effect of current. It consists of an electromag­net, a hammer and a gong.

Concrete and Abstract Nouns Exercises for Class 4 CBSE with Answers

Concrete and Abstract Nouns Exercises for Class 4 CBSE with AnswersThis grammar section explains English Grammar in a clear and simple way. There are example sentences to show how the language is used.

Concrete and Abstract Nouns Exercises for Class 4 CBSE with Answers PDF

  • Nouns can be concrete or abstract.
  • Concrete nouns are “sense” nouns. You can see, hear, smell, taste, and/or touch them.
  • Concrete nouns are countable and uncountable.
  • Abstract nouns are ideas or concepts – things that you feel or think about but cannot touch.
  • Abstract nouns are uncountable.
  • Example: The lonely dog pushed at the fence, longing for freedom.
  • Dog and fence are concrete nouns. Freedom is an abstract noun.

Presentation
Read the picture story.
Concrete and Abstract Nouns Exercises for Class 4 CBSE with Answers

A. Answer the following questions as per the story.
1. What did Sarah bring at home? ___________
2. What did Sarah feel for her new puppy? ___________
3. What did the puppy do in its couch? ___________

B. Read the story again and list the concrete and abstract nouns in the table given below.

Concrete Abstract
……………………………………………………
……………………………………………………
……………………………………………………
……………………………………………………
……………………………………………………
……………………………………………………
……………………………………………………
……………………………………………………
……………………………………………………
……………………………………………………
……………………………………………………
……………………………………………………

Concrete And Abstract Nouns Exercises with Answers Pdf for Grade 4 CBSE PDF

A. Write whether the words in bold are concrete nouns or abstract nouns.

1. He was given an award for his courage. ___________
2. The door slammed shut. ___________
3. She thought that happiness was the most important thing in life. ___________
4. He dropped his phone with a crash. ___________
5. Time is a great teacher. ___________
6. His art teacher applauded his creativity. ___________
7. She moved the chair into its place. ___________
8. He always made his bed before leaving for school. ___________

B. Write whether the following nouns are concrete or abstract.

1. Love ___________
2. Book ___________
3. Girl ___________
4. Intelligence ___________
5. Mouse ___________
6. Loyalty ___________
7. Laptop ___________
8. Peace ___________
9. Desk ___________
10. Trust ___________
11. Confidence ___________
12. Bottle ___________

C. Write the opposite for each abstract noun.

1. Happiness ___________
2. Love ___________
3. Beauty ___________
4. Kindness ___________

Motion and Time Class 7 Notes Science Chapter 13

On this page, you will find Motion and Time Class 7 Notes Science Chapter 13 Pdf free download. CBSE NCERT Class 7 Science Notes Chapter 13 Motion and Time will seemingly help them to revise the important concepts in less time.

CBSE Class 7 Science Chapter 13 Notes Motion and Time

Motion and Time Class 7 Notes Understanding the Lesson

1. The act or process of moving or of changing position or change of posture or a gesture is called motion.

2. Motion of objects are of two types-motion of some objects are slow while that of some others are fast.

3. Objects which take a longer time to cover a certain distance is called slow whereas another object which takes a shorter time to cover the same distance is said to be

4. The speed of an object is defined as the distance travelled by the object in unit time.

Speed = \(\frac{\text { Distance travelled }}{\text { Time taken }}\)

5. The SI unit of speed is metre per second (m/s).

6. If the speed of an object moving along a straight line keeps changing, its motion is said to be non-uniform motion.

7. If an object moving along a straight line with a constant speed, its motion is said to be in uniform motion.

8. The average speed of a body can be defined as the total distance travelled divided by the total time taken.                                                                                     ,

Thus, Average speed = \(\frac{\text { Total Distance travelled }}{\text { Total Time taken }}\)

9. A simple pendulum consists of a small metallic ball, called the bob, suspended from a rigid stand by a thread.

10. The time taken by the pendulum to complete one oscillation is called its time period.

11. Speedometer is an instrument on a vehicle’s dashboard which indicates the speed of the vehicle when it is running. It records the speed directly in km/h.

12. Odometer is an instrument for measuring the distance travelled by the vehicle. It records the distance travelled by the vehicle in kilometres.

13. The basic unit of time is second.

14. A graph is used to study the relation between two inter-dependent physical quantities.

15. The quantity in the graph that is made to alter at will is called independent variable and the other quantity which varies as a result of this change is known as dependent variable. The graph may be a straight or curved line.

16. The distance-time graph for the motion of an object moving with a constant speed is a straight line.

Class 7 Science Chapter 13 Notes Important Terms

Bar graph: A graph in which statistical data are represented in form of bars of different heights.

Graphs: A graph is a mathematical relation between two inter-dependent physical quantities.

Non-uniform motion: When a body covers unequal distances in equal intervals of time or equal distances in unequal intervals of time, then it is said to be in non-uniform motion.

Oscillatory motion: The to and fro motion of a simple pendulum about its mean position is called oscillatory motion.

Speed: The distance travelled per unit time is known as speed.

Speed = \(\frac{\text { Distance Covered }}{\text { Time taken }}\)

Time period: The time taken by a pendulum for one oscillation is called its time period.

Uniform motion: Uniform motion can be defined as the motion in which body travels equal distances in equal intervals of time.

Unit of time: The SI unit of time is second.

Noun Exercises for Class 4 CBSE With Answers

Noun Exercises for Class 4 CBSE With Answers 1Definition: A noun is a part of speech that is used to name a person, place, thing, quality, or action. Examples: Mango, girl, boy, cat, etc.

Any name given to a person, thing, animal or place is called a noun.

This grammar section explains English Grammar in a clear and simple way. There are example sentences to show how the language is used.

Noun Exercises for Class 4 CBSE With Answers PDF

Nouns are words used to refer to objects, places and living things. Some nouns also refer to feelings and emotions.

  • The words that we use for naming people, places, animals and things are called nouns.
  • Nouns that name a person, place or thing of one group or class are called Common Nouns. For example: table, school, park, beach, city etc.
  • Special nouns name a specific person, place or thing. They are also called proper nouns. They always begin with capital letters. For example: Tuesday, January, Mango, India, River Nile etc.
  • Groups of people, animals and things are called collective nouns.
  • Nouns that are used for only one person, place or thing are called singular nouns. Nouns that are used to name more than one person, thing or place are called plural nouns.
  • Nouns which can be counted are called countable nouns. Examples: boy, girl, bird, apple. Nouns which cannot be counted are called uncountable nouns. Examples: water, rice, oil, milk. Names that are uncountable are always singular.
  • Masculine nouns refer to males and Feminine nouns refer to females.
  • Nouns that refer to both males and females are called common gender nouns. A noun that is neither a male nor a female is called neuter noun.
  • Possessive nouns are used to show that something belongs to a person, place, thing or idea. We add an apostrophe (‘s) at the end of the noun to show possession. We do this even if the noun already ends with an “s”.
  • The book belongs to John. (John’s book)
  • A noun that shows ownership by more than one person is a plural possessive noun.
  • The restroom belongs to the girls. (The girls’ restroom)
  • To make an irregular plural noun that does not end in “s” possessive, add an apostrophe and “s” to the end.
  • The toys belong to the children. (The children’s toys)
  • A compound noun is made from two smaller words. Example: toothpaste tooth-paste

Noun Exercises for Class 4 with Answers CBSE PDF

A. Read the words given in the box. Write them under the correct category.
Noun Exercises for Class 4 CBSE With Answers 2

B. Rewrite the following sentences, replacing each common noun with a proper noun.
Example:

  • The girl at that table lives in a small city.
    The girl at that table lives in Agra.

1. The department store closed on the holiday.
______________________________
2. That restaurant serves the best hamburgers.
______________________________
3. He is preparing to climb a mountain.
______________________________
4. The train doesn’t stop at the next town.
______________________________
5. My friends met at the shopping mall.
______________________________

C. Underline plural noun in the following sentences.

1. Most parks have several benches.
2. Students needed to sit to give their feet a rest.
3. The artists brought their sketch pads and pencils.
4. Easha drew pictures of two deer near some trees.
Noun Exercises for Class 4 CBSE With Answers 3Noun Exercises for Class 4 CBSE With Answers 4
5. People listened to their radios as they ate.
6. Flies buzzed around the bags filled with sandwiches.

D. In each sentence, underline the plural noun that has been formed incorrectly. Write the correct plural noun in the space provided. The first one has been done for you.

1. Some communitvs have ethnic food-tasting events.
communities

2. It’s fun to taste dishs from countries around the world.
______________________________
3. The womens in Mom’s club hold food fairs every year.
______________________________
4. Tables and chaires are set up near the fieidhouse.
______________________________
5. Our family donates boxs of paper goods.
______________________________
6. Sharp knifes were needed to cut the pizzas.
______________________________
7. They try to keep the childrens busy with games.
______________________________
8. Eight mans entertained the guests with country music.
______________________________
9. The melodys were familiar to most of the guests.
______________________________
10. A few senior citizens sat in the shade of the tree branchs.
______________________________

E. Complete each sentence with the possessive form of the word in brackets.

1. Two ___________ backpacks were left in the picnic area. (children)
2. My ___________ notebook got wet in the rain, (friend)
3. In one tree we saw evidence of a ___________ home. (woodpecker)
Noun Exercises for Class 4 CBSE With Answers 5
4. ___________ tape recorder came in handy. (Lata)
5. We all kept quiet when she recorded some baby ___________ chirps, (robins)

F. Underline possessive noun in each sentence and write S if that noun is singular or P if it is plural.

1. Mrs. Khanna’s class took several field trips this year. ___________
2. Their science unit’s subject was animal homes. ___________
3. Which trees’ branches seem to attract more birds? ___________
4. Kavita’s idea was to take pictures of some bird eggs. ___________
5. Three students’ cameras already had film in them. ___________

G. Underline compound nouns that are spelled incorrectly. Rewrite the sentences, using the correct plural form of those nouns.

1. The messiest job was cleaning the paintbrushs.
_________________________________

2. When I finished nailing wallboardes, I went out to the back yard.
_________________________________

3. Morning glorys were climbing up the sides of the fence.
_________________________________

4. My two greats-aunt, Lila and Henna, carried kitchen utensils outdoors.
_________________________________

5. They asked me to wash some breadboxs with a hose.
_________________________________

H. Choose the right collective noun from the options given below.

1. A _____________________ of playing cards.
flock [ ]
pack [ ]Noun Exercises for Class 4 CBSE With Answers 6

2. A school of _____________________
fish [ ]
birds [ ]Noun Exercises for Class 4 CBSE With Answers 7

3. A _____________________ of keys.
group [ ]
bunch [ ]Noun Exercises for Class 4 CBSE With Answers 8

4. A _____________________ of events
series [ ]
group [ ]Noun Exercises for Class 4 CBSE With Answers 9

5. A choir of _____________________
Singers [ ]
painters [ ]Noun Exercises for Class 4 CBSE With Answers 10

6. Anarmy of _____________________
ants [ ]
birds [ ]Noun Exercises for Class 4 CBSE With Answers 11

7. A pack of _____________________
cats [ ]
wolves [ ]Noun Exercises for Class 4 CBSE With Answers 12

8. Aswarm of _____________________
bears [ ]
bees [ ]Noun Exercises for Class 4 CBSE With Answers 13

I. Rewrite the following sentences, changing the gender of the nouns.

1. My uncle is an actor. He has played the part of a hero in many films.
____________________________________________

2. The gentleman has arrived.
____________________________________________

3. The father loved his son very much.
____________________________________________

4. The girls saw a lion and a tiger at the zoo.
____________________________________________

5. The old woman’s nephew visits her every Sunday.
____________________________________________

6. I heard my landlady having an argument with her husband.
____________________________________________

J. Put the words in the correct columns.

dog, hen, tigress, boy, pen, doctor, mother, cousin, son, father, lion, peacock, queen, daughter, uncle, book, bull, policeman, sister, student, rooster, brother, baby, bottle, aunt.

Masculine Feminine Neuter Common

 K. Write whether the following nouns are ‘singular’ or ‘plural’.

1. ice cubes ___________
2. lice ___________
3. women ___________
4. teeth ___________
5. foot ___________
6. hen ___________
7. toes ___________
8. people ___________

L. Match the following words to make compound words.

1. Box – a) star
2. Science – b) tongue
3. Travel – c) office
4. Bus – d) tax
5. Mother – e) fiction
6. Income – f) driver
7. Film – g) agent
8. Traffic – h) Jam

Nutrition in Plants Class 7 Notes Science Chapter 1

On this page, you will find Nutrition in Plants Class 7 Notes Science Chapter 1 Pdf free download. CBSE NCERT Class 7 Science Notes Chapter 1 Nutrition in Plants will seemingly help them to revise the important concepts in less time.

CBSE Class 7 Science Chapter 1 Notes Nutrition in Plants

Nutrition in Plants Class 7 Notes Understanding the Lesson

1. Vitamins, carbohydrates, proteins, fats and minerals are the components of food. These components of food are necessary for our body and are called nutrients.

2. The process of procuring and utilization of food by the body is called nutrition.

3. The mode of nutrition in which organisms make food themselves from simple substances is called autotrophic nutrition.

4. The organisms which cannot make their food and depend on others for their food are called heterotrophs and this type of nutrition is called heterotrophic nutrition.

5. Carbon dioxide from air is taken in through the tiny pores present on the surface of the leaves. These pores are surrounded by ‘guard cells’ such pores are called stomata.

6. The leaves have a green pigment and they are known as chlorophyll.

7. Plants use sunlight, carbon dioxide and water in presence of chlorophyll to synthesise their food. This process is known as photosynthesis.
Nutrition in Plants Class 7 Notes Science Chapter 1
8. The sun is the ultimate source of energy for all living organisms.

9. The bodies of living organisms are made of tiny units which are called cells.

10. The organisms either plants or animals that derive nutrients from another organisms are known as parasites. For example, Cuscuta, lice, etc.

11. The organisms which provide nutrients to another organisms without being benefitted are known as hosts.

12. The type of plants which trap insects and digest them by producing digestive juices are called insectivorous plants. For example, pitcher plant, sundew, venus fly trap, etc.

13. The mode of nutrition in which organisms take in nutrients in form of solution from dead and decaying matter is called saprophytic nutrition.

14. Plants which use saprophytic mode of nutrition are called saprotrophs.

15. The organisms which live together and share shelter and nutrients are said to be in symbiotic relationship. For example, certain fungi live in the roots of trees.

Class 7 Science Chapter 1 Notes Important Terms

Autotrophic: It is the mode of nutrition in which organisms prepare its own food by using sunlight, air and other essential substances.

Chlorophyll:
Chlorophyll is a green pigment present in leaves which absorb solar energy from sunlight, and enables the plant to prepare their food through the process of photosynthesis.

Heterotrophs: The organisms which cannot prepare their food and depends on other organisms for their food are known as heterotrophs.

Host: A plant or an animal which support other organisms by giving food, shelter, etc., is known as host.

Insectivorous: The plant or animal which eat insect for their survival is known as insectivorous.

Nutrients:
Vitamins, carbohydrates, proteins, fats and minerals are the components of food. These components of food are essential for our body and are called nutrients.

Parasite: The organism which depends on other organisms for deriving nutrients and their survival is known as parasite.

Photosynthesis: The process by which plants prepare their own food in the presence of sunlight, water, carbon dioxide and chlorophyll is called photosynthesis.

Saprotrophs: Organisms which take their nutrients from dead and decaying matter are called saprotrophs.

Saprotrophic: The mode of nutrition in which an organism take its food from dead and decaying matter is known as saprotrophic mode of nutrition.

Stomata: The tiny pores which are present on the surface of the leaves are called stomata.

Sentences Exercise for Class 5 CBSE with Answers

Sentences Exercise for Class 5 CBSE with AnswersThis grammar section explains English Grammar in a clear and simple way. There are example sentences to show how the language is used.

Sentence Exercise for Class 5 CBSE with Answers PDF

  • A sentence is a group of words in the correct order that makes sense.
  • Letters form words and words make the sentences.
  • A sentence always begins with capital letter and mostly ends with a full stop.
  • Sentence always has two parts- Naming and Doing.
  • Naming part tells about people, places, animals and things which are also called Noun.
  • Doing part tells what a person, an animal or thing does, which is also called Verb.
  • Naming part is called the subject of the sentence.
  • Doing part is called the predicate of the sentence. The subject tells you who or what the sentence is about.
  • The rest of the sentence including verb is called Predicate.
    Sentence Exercise for Class 5 CBSE with Answers
  • The subject and verb in a sentence must match even when the tense of the verb changes.
  • A singular subject must have singular verb.
    Example: I am a good student. , Singular subject => singular verb
  • A plural subject must have plural verb. Plural subject => plural verbs
    Example: We are good students.

There are five types of sentences: Assertive or declarative, Negative, Interrogative, Imperative and Exclamatory. The declarative or assertive sentence merely makes a statement. It ends with full stop(.).
Example:

  • The Earth revolves round the Sun.
  • Delhi is the Capital of India.

The interrogative sentence asks a question. It ends with question mark(?)
Example:

  • Does he study in the morning?
  • Which is his book?

The negative sentence expresses a negative statement, using not or never.
Example:

  • He does not work.
  • I never eat avocados.

The imperative sentence expresses a command, order or request.
Example:

  • Bring a cup of tea.
  • Meena has not worked.

The exclamatory sentence expresses a sudden emotion. It ends with an exclamation mark. (!)
Example:

  • What an idea! How cold the night is!

Sentences Exercises for Class 5 with Answers CBSE PDF

A. Look at the following sentences. Write ‘A’ for assertive, T’ for Interrogative, ‘E’ for exclamatory and ‘Im’ for Imperative.

1. Today is Babita’s birthday ___________________
2. Babita is eating a cake. ___________________
3. These flowers are colourful. ___________________
4. Why were you late to work? ___________________
5. Please sit down.

B. Write whether the sentence fragment is missing a subject or a predicate, and complete the sentences.

1. ____________ is my role model. Is the sentence missing a subject or a predicate?
____________________________________

2. Chota Bheem, the cartoon character, ____________
Is the sentence missing a subject or a predicate?
____________________________________

3. Mr. Singh ____________
Is the sentence missing a subject or a predicate?
____________________________________

4. ____________ went to the park.
Is the sentence missing a subject or a predicate?
____________________________________

5. My favourite food ____________
Is the sentence missing a subject or a predicate?
____________________________________

6. ____________ is my favourite musician. Is the sentence missing a subject or a predicate?
____________________________________

7. My favourite game ____________
Is the sentence missing a subject or a predicate?
____________________________________

8. _____________ is my favourite movie.
Is the sentence missing a subject or a predicate?
____________________________________

C. Circle the subjects and underline the predicates.

1. I went to Great America.
2. We should go to the movies.
3. She knows how to make jewelry.
4. We play basketball every Tuesday.
5. My pencil broke into pieces.
6. Sahil told me to read.
7. Alok stayed up late doing his homework.
8. Homework makes me happy.
9. I put my name on top of the paper.
10. The Cheetah is the fastest land animal.

D. Change each assertive sentence into an interrogative sentence. The first one has been done for you.

1. Parrot is a beautiful bird. Is Parrot a beautiful bird?
2. Ganguli is a fine batsman. ____________
3. The distance between India and Japan is 8000 kms. ____________
4. I am writing a letter. ____________
5. The judge is hearing the case tomorrow. ____________
6. We are waiting for the guests. ____________

E. Change the exclamatory sentences into assertive sentences. The first one has been done for you.

1. How wisely he planned!
He planned very wisely.

2. How lovely her face is!
________________________

3. What a certain matter it is!
________________________

4. How confusing the project was!
________________________

5. What a terrible relationship he developed!
________________________

6. What an excellent photograph he got!
________________________

7. How lovely the park is!
________________________

8. What a marvelous age we live in!
________________________

ML Aggarwal Class 6 Solutions for ICSE Maths Chapter 15 Data Handling Check Your Progress

ML Aggarwal Class 6 Solutions Chapter 15 Data Handling Check Your Progress for ICSE Understanding Mathematics acts as the best resource during your learning and helps you score well in your exams.

ML Aggarwal Class 6 Solutions for ICSE Maths Chapter 15 Data Handling Check Your Progress

Question 1.
A die is thrown 25 times and the scores were as given below :
2, 1, 4, 6, 2, 3, 1, 5, 6, 3, 4, 5, 2, 1, 6, 6, 6, 3, 2, 2, 2, 4, 3, 2, 2
(i) Construct a data array.
(ii) Construct a tally chart and frequency distribution table.
Solution:
ML Aggarwal Class 6 Solutions for ICSE Maths Chapter 15 Data Handling Check Your Progress 1

Question 2.
In primary school, the number of students in different classes is as follows:
ML Aggarwal Class 6 Solutions for ICSE Maths Chapter 15 Data Handling Check Your Progress 2
Represent this data by a pictograph, using ML Aggarwal Class 6 Solutions for ICSE Maths Chapter 15 Data Handling Check Your Progress 2.1 ≃ 20 students.
Solution:
ML Aggarwal Class 6 Solutions for ICSE Maths Chapter 15 Data Handling Check Your Progress 3

Question 3.
Observe the following bar graph, showing the marks scored by Gurmeet in the annual examination in different subjects: Answer the following questions:
ML Aggarwal Class 6 Solutions for ICSE Maths Chapter 15 Data Handling Check Your Progress 4
(i) What is the scale of this bar graph?
(ii) In which subject Gurmeet obtained maximum marks?
(iii) In which subject she obtained minimum marks?
(iv) Name the subject(s) in which she got 80 or more marks.
Solution:
ML Aggarwal Class 6 Solutions for ICSE Maths Chapter 15 Data Handling Check Your Progress 5

Question 4.
The following table shows the monthly expenditure of a family on various items:
ML Aggarwal Class 6 Solutions for ICSE Maths Chapter 15 Data Handling Check Your Progress 6
Represent the data by a bar graph.
Solution:
ML Aggarwal Class 6 Solutions for ICSE Maths Chapter 15 Data Handling Check Your Progress 7

Question 5.
Find the mean and the median of the following data:
5, 3, 12, 0, 7, 11, 4, 3, 9
Solution:
ML Aggarwal Class 6 Solutions for ICSE Maths Chapter 15 Data Handling Check Your Progress 8