Worksheets

A. Answer the following questions in short:

1. What are the advantages of using CNG and LPG as fuels?
2. Name the petroleum product used for surfacing of roads.
3. Describe how coal is formed from dead vegetation. What is this process called?
4. Explain why fossil fuels are exhaustible natural resources.
5. Describe characteristics and uses of coke.
6. Explain the process of formation of petroleum.
7. Are natural resources living, non-living or both?
8. What are fossil fuels?
9. What is the main purpose of petroleum refining?
10. Can coal, petroleum and natural gas be prepared in the laboratory from dead organisms?
11. We read in newspapers that burning of fuels is a major cause of global warming. Explain why?

B. Fill in the blanks:

1. Fossil fuels are ………………, ……………… and ……………. .
2. Process of separation of different constituents from petroleum is called ………………. .
3. Least polluting fuel for vehicle is ……………….. .
4. Petroleum and natural gas were formed from dead ……………… .

C. State True or False:

1. Fossil fuels can be made in the laboratory. ……………………
2. CNG is more polluting fuel than petrol. ………………….
3. Coke is almost pure form of carbon. …………………
4. Coal tar is a mixture of various substances. ………………..

D. Tick (✓) the correct option:

1. It is an important fraction of petroleum. It is further distilled to get lubricating oil and paraffin wax.
(a) Petroleum gas
(b) Heavy oil
(c) Anthracite
(d) Residue

2. Coal mainly contains:
(a) carbon
(b) carbon and hydrogen
(c) carbon, hydrogen and nitrogen
(d) carbon, nitrogen and oxygen

3. Which of the following is regarded as the best variety of coal?
(a) Bituminous
(b) Lignite
(c) Anthracite
(d) Peat

4. Which of the following is a non-polluting fuel for vehicles?
(a) Petrol
(b) Diesel
(c) Kerosene
(d) CNG

5. Which of these is not a natural source of energy?
(a) Coal
(b) Petroleum
(c) Electricity
(d) Sun

6. Fossil fuels are:
(a) renewable but exhaustible
(b) renewable and inexhaustible
(c) non-renewable but can be recycled
(d) non-renewable and cannot be recycled

E. Match the following:

F. The following table shows the total power shortage in India from 1991-1997. Show the data in the form of a graph. Plot shortage percentage for the years on the Y-axis and the year on the X-axis:

G. Find out the location of major thermal power plants in India. What could be the reasons for their being located at those places?

H. Make a list of various materials used by us in daily life and classify them as natural and man-made:

Worksheets for Class 8 Science

A. Tick (✓) the correct option:

1. Which of the following can be beaten into thin sheets?
(a) Zinc
(b) Phosphorus
(c) Sulphur
(d) Oxygen

2. Which of the following statements is correct?
(a) All metals are ductile.
(b) All non-metals are ductile.
(c) Generally, metals are ductile.
(d) Some non-metals are ductile.

3. Metals can be drawn into thin wires because:
(a) they are sonorous
(b) they are malleable
(c) they are ductile
(d) they are dense

4. The best electrical conductor is:
(a) gold
(b) silver
(c) copper
(d) aluminium

5. The non-metal which has very high melting point is:
(a) sulphur
(b) graphite
(c) phosphorus
(d) iodine

B. Fill in the blanks:

1. Phosphorus is a very …………………… non-metal.
2. Metals are ………………. conductors of heat and ………………. .
3. Iron is ………………… reactive than copper.
4. Metals react with acids to produce …………………….. gas.

C. State True or False:

1. Generally, non-metals react with acids. ………………….
2. Sodium is a very reactive metal. ………………
3. Copper displaces zinc from zinc sulphate solution. …………………
4. Coal can be drawn into wires. ………………..
5. Copper foils are used to wrap food items. ……………..

D. Match the following:

E. Answer the following questions in short:

1. Give reasons for the following:
(a) Aluminium foils are used to wrap food items.
(b) Immersion rods for heating liquids are made up of metallic substances.
(c) Copper cannot displace zinc from its salt solution.
(d) Sodium and potassium are stored in kerosene.
2. Can you store lemon pickle in an aluminium utensil? Explain.
3. What happens when:
(a) Dilute sulphuric acid is poured on a copper plate?
(b) Iron nails are placed in copper sulphate solution?
Write word equations of the reactions involved.
4. Saloni took a piece of burning charcoal and collected the gas evolved in a test tube.
(a) How will she find the nature of the gas?
(b) Write down word equations of all the reactions taking place in this, process.
5. One day Reeta went to a jeweller’s shop with her mother. Her mother gave an old gold jewellery to the goldsmith to polish. Next day when they brought the jewellery back, they found that there was a slight loss in its weight. Can you suggest a reason for the loss in weight?
6. Can a wire be drawn out of wood? Why not?
7. A doctor prescribed a tablet to a patient suffering from iron deficiency. The tablet does not look like iron. Explain.
8. Silver ornaments get blackened when exposed to air for a long time. Why?

F. Discuss with your parents/neighbours/goldsmiths why gold is preferred for making jewellery.

G. Some properties are listed in the following table. Distinguish between metals and non-metals on the basis of these properties:

H. Some materials have been given in the table given below. Note down their lustre and hardness in the given space:

I. Recall the name of some of the laboratory acids and bases you have read in class VII. Note down their names in the table given below. Identify the metal or non-metal present in them which forms oxides with oxygen:

Worksheets for Class 8 Science

A. Answer the following questions in short:

1. Explain why some fibres are called synthetic.
2. Give examples which indicate that nylon fibres are very strong.
3. Explain why plastic containers are favoured for storing food.
4. Explain the difference between thermoplastic and thermosetting plastics.
5. Explain why the following are made of thermosetting plastics:
(a) Saucepan handles
(b) Electric plugs/switches/plug boards
6. Categorise the materials of the following products into ‘can be recycled’ and ‘cannot be recycled’:
Telephone instruments, plastic toys, cooker handle, carry bags, ball point pens, plastic bowls, plastic covering on electrical wires, plastic chairs, electrical switches.
7. Rana wants to buy shirts for summer. Should he buy cotton shirts or shirts made from synthetic material? Advise Rana, giving your reason.
8. Give examples to show that plastics are non-corrosive in nature.
9. Should the handle and bristles of a tooth brush be made of the same material? Explain your answer.
10. ‘Avoid plastics as far as possible’. Comment on this advice.
11. ‘Manufacturing synthetic fibres is actually helping conservation of forests.’ Comment.
12. Describe an activity to show that thermoplastic is a poor conductor of electricity.
13. Define natural fibres.
14. Manufacturing synthetic fibres is actually helping conservation of forests. Comment
15. Meetu is wearing a cotton suit and Ritu is wearing a nylon suit. On their way back home from the office, it starts raining. Can you identify that whose clothes will get dry earlier and why?

B. Tick (✓) the correct option:

1. Rayon is different from synthetic fibres because:
(a) it has silk-like appearance
(b) it is obtained from wood pulp
(c) its fibres can also be woven like those of natural fibres
(d) all of the above

2. Nylon is a polymer which is termed as:
(a) polyamide
(b) polyester
(c) polyamine
(d) polyvinyl

3. Which of the following is a polymer of tetrafluoroethene?
(a) PVC
(b) Teflon
(c) Bakelite
(d) Nylon

4. Which of the following is a thermosetting plastic?
(a) PVC
(b) Teflon
(c) Bakelite
(d) Nylon

C. Fill in the blanks:

1. Synthetic fibres are also called …………….. or ……………….. fibres.
2. Synthetic fibres are synthesised from raw material called ………………… .
3. Like synthetic fibres, plastic is also a ……………… .
4. All polymers/plastics are ………………… .
5. Polymer of vinyl chloride is ………………. .

D. Match the following:

E. State True or False:

1. Rayon is made from used cellulose. ……………….
2. Plastics are non-biodegradable. …………………
3. Wool is a natural fibre obtained from plants. ………………..
4. Cotton polyester blends are more comfortable during hot/humid weather. ……………..

F. Have you heard of the campaign: “Say No To Plastics”. Coin a few more slogans of this kind.

G. Fibres are also used for making a large variety of household articles. Make a list of some common articles made from fibres. Try to separate them into those made from natural fibres and those made from artificial fibres. Make entries in the table given below:

H. Complete the table given below. One has been done for you:

Worksheets for Class 8 Science

A. Fill in the blanks:

1. Microorganisms can be seen with the help of a ………………. .
2. Blue green algae fix ……………. directly from air to enhance fertility of soil.
3. Alcohol is produced with the help of ………………… .
4. Cholera is caused by ……………….. .
5. The female Aedes mosquito is a carrier of the ……………….. virus.

B. Tick (✓) the correct option:

1. Yeast is used in the production of:
(a) sugar
(b) alcohol
(c) hydrochloric acid
(d) oxygen

2. The following is an antibiotic:
(a) Sodium bicarbonate
(b) Streptomycin
(c) Alcohol
(d) Yeast

3. Carrier of malaria-causing protozoan is:
(a) female Anopheles mosquito
(b) cockroach
(c) housefly
(d) butterfly

4. The most common carrier of Communicable diseases is:
(a) ant
(b) housefly
(c) dragonfly
(d) spider

5. The bread of idli dough rises because of:
(a) heat
(b) grinding
(c) growth of yeast cells
(d) kneading

6. The process of conversion of sugar into alcohol is called:
(a) nitrogen fixation
(b) moulding
(c) fermentation
(d) infection

C. Match the following:

D. Answer the following questions in short:

1. Can microorganisms be seen with the naked eye? If not, how can they be seen?
2. What are the major groups of microorganisms?
3. Name the microorganisms which can fix atmospheric nitrogen in the soil.
4. Write 10 lines on the usefulness of microorganisms in our lives.
5. Write a short paragraph on the harms caused by microorganisms.
6. What are antibiotics? What precautions must be taken while taking, antibiotics?
7. What is food preservation?
8. Is it safe to eat infected bread? Why?
9. Why do foods like dry soup mixes remain unspoilt for many days?

E. State True or False:

1. Bacteria possess characteristics of living as well as non-living. ………………..
2. Yeast is used in the preparation of vitamin ‘B’ complex. ……………….
3. All viruses are parasites. …………………
4. All algae can make their own food because they contain chlorophyll. ………………..
5. Microorganism may be unicellular or multicellular. ……………..

F. Classify the following into friendly and harmful microorganisms:

1. Yeast
2. malarial parasite
3. Lactobacillus
4. bread mould
5. Rhizobium
6. Bacillus anthracis

G. Visit a doctor. Find out why antibiotics should not be overused. Prepare a short report.

H. Here is a list of food items. Tick (✓) the food items you think are prone to spoilage from microorganisms:

1. Ice creams
2. Sandwich
3. Sugar
4. Milk
5. Honey
6. Salt
7. Uncooked rice
8. Salads
9. Curd
10. Cooked rice
11. Dry fruits
12. Vegetables

I. Complete the following cycle given as figure by filling the blank boxes:

Worksheets for Class 8 Science

A. Select the correct word from the following list and fill in the blanks:

float, water, crop, nutrients, preparation

1. The same kind of plants grown and cultivated on a large scale at a place is called ………………. .
2. The first step before growing crops is ……………… of the soil.
3. Damaged seeds would ………………… on top of water.
4. For growing a crop, sufficient sunlight and ………………. and ………………. from the soil are essential.

B. Match the following:

C. Answer the following questions in short:

1. Give two examples of each:
(a) Kharif crop: ………………. ………………….
(b) Rabi crop: ………………… …………………..
2. Write a paragraph in your own words on each of the following:
(a) Preparation of soil:
(b) Sowing:
(c) Weeding:
(d) Threshing:
3. Explain how fertilizers are different from manure.
4. What is irrigation? Describe two methods of irrigation which conserve water.
5. If wheat is sown in the kharif season, what would happen? Discuss.
6. Explain how soil gets affected by the continuous plantation of crops in a field.
7. What are weeds? How can we control them?
8. Arrange the following boxes in proper order to make a flow chart of sugar cane crop production:

Answer:
5, …….., ………, ……., ……., …….., ………..,
9. Define agricultural practices.
10. What is animal husbandry?
11. How are weeds better adapted for growth?
12. Despite favourable climatic conditions a farmer’s crop failed to give good yield. Give the possible reason for this.

D. Tick (✓) the correct option:

1. The science of agriculture includes:
(a) management of plants and animals
(b) management of plants
(c) management of animals
(d) management of humans

2. Transplantation is done in the case
(a) wheat
(b) paddy
(c) maize
(c) barley

3. Manures are:
(a) organic in nature
(b) inorganic in nature
(c) organic as well as inorganic in
(d) none of the above

4. Cereals generally provide:
(a) proteins
(b) sugars
(c) fats
(d) vitamins

5. The plant roots contain nitrogen fixing bacteria:
(a) orange
(b) pea
(c) mango
(d) tomato

E. State True or False:

1. Earthworm is friend of the farmer. ………………
2. Weedicides make the weeds grow well. ………………
3. Canals, wells and rains are the sources of water for irrigation. ……………….
4. Crop rotation helps to increase the fertility of soil. ……………….
5. Crop can be damaged by excess supply of water. ……………..

F. Complete the following word puzzle with the help of clues given below:

Down (↓)
1. Providing water to the crops.
2. Keeping crop grains for a long time under proper conditions.
5. Certain plants of the same kind grown on a large scale.

Across (→)
3. A machine used for cutting the matured crop.
4. A rabi crop that is also one of the pulses.
6. A process of separating the grain from chaff.

G. Complete this table yourself:

Worksheets for Class 8 Science

A. Answer the following questions:

1. Name the place in Manipur where the Nightout and Leima ruled.
2. Why did the people of Kangleipak love their king and queen?
3. Why did the Ningthou want to choose a future king?
4. How did the king want to select their future king?
5. What kind of child was Sanatombi?
6. Have you ever seen an animal or a bird in pain? What did you do?

B. Tick (✓) the correct answer (Multiple Choice Questions):

1. Who were loved by the people?
(a) Ningthou and Leima
(b) Tingthou and Famina
(c) LingthouandTamina
(d) None of these
2. What was the name of the daughter of the king and the queen?
(a) Sanayaoba
(b) Sanayaima
(c) Sanatomba
(d) Sanatombi
3. Who mounted his horse and held his spear straight in front of him?
(a) Sanayaima
(b) Sanajaoba
(c) Sanatomba
(d) None of these
4. Who was declared the future Leima of Kangleipak?
(a) Sanatombi
(b) Sanajaoba
(c) Sanatomba
(d) Sanayaima

C. Fill in the blanks:

1. ……………….. and ………………. were loved dearly by the people.
2. ………………. was a lovely child, soft and beautiful inside. .
3. The ministers were ……………… .
4. The people knew ………………. .
5. Sanatombi looked and lonely. ……………… .

D. State True or False:

1. The birds and animals too loved Ningthou and Leima.
2. Their beloved king and queen had two sons.
3. The Ningthou and Leima turned to their sons.
4. The Ningthou looked at the three boys.
5. The eldest son always became the king in olden days.

E. Write the meanings of the following in English:

Tunggi Ningthou — …………………..
Thouro ! Thouro ! — ………………….
Phajei! Phajei! — ……………………..
Shagol thauba nupa! — ………………..

F. Read the lesson carefully and put a circle around all the action words with -ed at the end. Then write them in one column and their present form in another. One is done for you:

G. Fill in the correct word in the blanks and complete the story:

In a forest, there ………………… (live / lives / lived) a goblin named Cruel. One day, he ………………… (meet / met / meets) an old man wandering in the forest. Immediately, Cruel
……………….. (leap / leaps / leapt) on to the old man’s shoulders and ………………….. (order / orders / ordered) him, “Let’s go. Move fast.” The frightened old man ………………. (obey
/ obeys / obeyed) the nasty goblin and ……………….. (walk / walks / walked) on. As they on,(move / moves / moved), he …………….. (notice / notices / noticed) that the goblin’s feet were very tender.

The old man ……………… (ask / asks / asked) Cruel, “Sir, how are your feet so soft and tender?” Cruel ……………….. , (reply / replies / replied) “I have taken a vow that I will not touch the ground with my feet, till I wash them.” They soon ………………… (come / comes / came) to a pool. The goblin ………………….. (instruct / instructs / instructed) the old man to wait for him while he …………………. (enter / enters / entered) the pool.

The old man ……………….. (think / thinks / thought) to himself, “Now that the goblin has wet his feet, he does not need me. Let me run for my life or he will surely eat me up.” So he ………………….. (run / runs / ran) off.

Make a list of the action words from this story:

H. Discuss the following and answer:

1. Where is Manipur on the map of India?
(i) Assamese
(ii) Maithailon
(iii) Mizo
2. What language do the people of Manipur speak?
3. Who do you think should have been made the future king?

• Sanajaoba, the one who jumped through the tree.
• Sanayaima, the one who jumped over the tree.
• Sanatomba, the one who uprooted the tree.

(i) Why do you think so?
(ii) Who was made the future queen and why?

I. Some interesting words sound like the noises for which they stand. You use a different tone of voice when you say these words. The voice becomes louder and more forceful.

For example,
Zoom! went the car.
Bang went the door.
Pip! pop! flippety flop!

Say the following and write what would make these sounds or actions:
Click! …………………..
Chirp! ………………….
Whisper! ……………..
Bravo! ………………..
Oh! …………………
Ah! …………………
Hurrah! ………………
Alas! …………………
Wonderful! ……………….
Hi! ……………….
Ho! …………………
Hop away! ……………..

Worksheets for Class 5 English

A. Answer the following questions:

1. Where did the polar bear live with her family?
2. What did Malu learn to do from her parents?
3. Where did Malu want to travel?
4.What was it that Malu’s parents wanted her to learn?
5. Was Malu scared to swim? Did she learn it easily?
6. Read the last two stanzas of the poem. Whom does ‘she’ stand for in both?
7. See the picture shown below and talk about it:

B. Tick (✓) the correct answer (Multiple Choice Questions):

1. What was the name of the polar bear?
(a) MaluBhalu
(b) KaluBhalu
(c) LaluBhalu
(d) NiluBhalu
2. HowwasMalu?
(a) A stupid girl
(b) A clever girl
(c) A happy girl
(d) All of these
3. How did Malu swim?
(a) With all her might
(b) With some of her might
(c) She did not try
(d) All of these

C. Complete the following lines of the poem:

1. Very soon our …………………. parents knew. Fish to catch, ……………. a clever girl.
2. Brave mother’s brave …………………. left behind her. Malu swam with ……………… wrong or right.

D. Malu lived with Malu’s parents in the North Pole. Malu had great fun with Malu’s seagull friends.

One day, Malu’s father told Malu that the hunters had come to trap Malu and dalu’s family. Malu knew how to hide very well. Malu shut lalu’s eyes and curled up like a ball of snow.

The hunters searched for Main and Malu’s family vain. We can avoid repeating the names by using certain other words in their place. Study the table below:

Now rewrite the paragraph using words from the table!

E. Now write a detailed character sketch of Malu Bhalu:

F. Read the following passage carefully:

One day Meena plucks a mango and brings it home. Her grandmother gives the larger piece to Raju because he is a boy. Meena protests. After all, she brought the mango and she is the elder of the two. She insists she has a greater right over her share. Her father comes to her help and divides the mango equally.

Now answer the questions:
1. Who brought the mango home?
2. Why did Meena’s grandmother give a larger piece to Raju?
3. Who do you think should have get the larger piece?

G. Using the following clues write about yourself in the space below:

H. What are the things your mother asks you to do?

Worksheets for Class 5 English

A. Answer the following questions:

1. Which modes of transport do the people use to move around in the city?
2. What are the things that the people carry with them, while moving around?
3. Where all do you find these very busy people?
4. Where have you seen crowds of people?
5. Why do you think all these people are in a hurry?

B. Tick (✓) the correct answer (Multiple Choice Questions):

1. Where is the subway?
(a) Above the ground
(b) Below the ground
(c) In the sky
(d) All of these
2. When it rains the people use:
(a) umbrellas
(b) raincoats
(c) gumboots
(d) all of these
3. To go up and down in tall buildings people use:
(a) helicopters
(b) aeroplanes
(c) elevators
(d) none of these
4. We find the very busy people in:
(a) small villages
(b) big cities
(c) towns
(d) none of these

C. State True or False:

1. The poem describes life in a town.
2. There are eight stanzas ir the poem.
3. The people in the poem are in a hurry.
4. Some people in the poem are also in the train.

• Worksheet for Class 5 English Sing a Song of People Assignment 1
• Worksheet for Class 5 English Sing a Song of People Assignment 2

D. Let’s write the opposites of the following words:

1. slow ………………..
2. up …………………
3. back ……………..
4. tall ……………….
5. below …………….
6. loud ………………

E. Did you observe that in the poem, the last words in every second and fourth line rhyme with each other? Can you write a four line poem?

F. Find out how many people are there in our country:

1. Do we have enough land for all people on this earth?
2. Is there enough food and water for all people?

G. Find out the following from ten families living in your neighbourhood:

* F = Family
1. How many members are educated in each family?
2. From amongst the ten families, how many are educated?
3. Now talk to your partner and then write a report about your neighbourhood.

H. Read and listen to these two poems with your partner and find out what are the things that the village child and the city child like and write at given space:

I. Discuss and write:

1. The people who live in cities often wish they could live in quiet towns. Do you like the place you live in?
2. Tell your,partner two things you like and don’t like about the place you live in and write:

J. Interview your teacher and get her responses for the following questions:

1. Why did you become a teacher?
2. How do you come to school everyday?
3. Do you have any pets?
4. What kinds of books do you like to read?
5. What are your hobbies?

Now write a paragraph about your teacher with the information you have gathered:
My Teacher
My teacher says she became a teacher because

Worksheets for Class 5 English