CBSE | MVM | Class 8 | Worksheets on All Subjects

Date: 17 April 2026

Worksheet - 1(Science)

Chapter 1: Crop Production and Management

Section A – Objective Type Questions

(1 × 8 = 8 marks)

Q1. Multiple Choice Questions (MCQs)

Choose the correct option:

Which of the following is a Kharif crop?
a) Wheat
b) Gram
c) Paddy
d) Mustard
The process of loosening the soil is called:
a) Sowing
b) Ploughing
c) Irrigation
d) Harvesting
Which of the following is used to remove weeds?
a) Hoe
b) Sickle
c) Seed drill
d) Sprayer
Which irrigation method saves water?
a) Canal
b) Flood
c) Drip
d) Tank

Q2. Assertion–Reason Questions

Assertion (A): Manure improves soil fertility.
Reason (R): It adds organic matter to the soil.
Assertion (A): Weeds should be removed regularly.
Reason (R): They compete with crops for sunlight and nutrients.

(Choose correct option: a/b/c/d as per CBSE pattern)

Q3. Very Short Answer (1 mark each)

What is harvesting?
Name one traditional method of irrigation.

Section B – Short Answer Questions

(2 × 5 = 10 marks)

Define crop with two examples.
Write any two differences between manure and fertiliser.
Why is preparation of soil important? (any two points)
What is irrigation? Why is it necessary?
What is threshing? How is it done?

Section C – Long Answer Questions

(3 × 2 = 6 marks)

Explain the steps of crop production in sequence.
Describe modern methods of irrigation and their advantages.

Section D – Case-Based Question

(1 mark each)

A farmer uses excessive fertilisers in his field. After some years, the soil becomes less fertile and hard.

Answer the following:
a) Why did soil fertility decrease?
b) Suggest one way to improve soil health.

Internal Choice (CBSE Pattern)

Q14 OR Explain the process of sowing and precautions taken.

Diagram-Based Question (Practice)

👉 Draw and label:

Plough
Sprinkler irrigation system

Date: 19 April 2026.

Worksheet 2 (Science)

Ch: Crop Production and Management (CBSE)

A. Fill in the Blanks

The process of loosening and turning of soil is called __________.
Seeds are sown using a tool called __________.
Crops like paddy and maize are __________ crops.
The supply of water to crops is known as __________.
Chemicals used to kill pests are called __________.
__________ are unwanted plants that grow along with crops.
Harvesting is done using a __________.
Grains are separated from chaff by __________.

B. Multiple Choice Questions (MCQs)

Which of the following improves soil fertility?
a) Plastic
b) Manure
c) Sand
d) Stones
Which method of irrigation uses less water?
a) Flood irrigation
b) Drip irrigation
c) Canal irrigation
d) River irrigation
Which of the following is a Kharif crop?
a) Wheat
b) Gram
c) Paddy
d) Mustard
The process of cutting crops after maturity is called:
a) Threshing
b) Harvesting
c) Weeding
d) Sowing
Which tool is used for removing weeds?
a) Sickle
b) Hoe
c) Plough
d) Seed drill

C. True or False

Fertilisers are organic substances. (______)
Weeds compete with crops for nutrients. (______)
Irrigation is not needed in rainy season. (______)
Storage of grains prevents spoilage. (______)
Good quality seeds give better yield. (______)

D. Match the Following

Column A	Column B
1. Sowing	a. Removing weeds
2. Weeding	b. Adding seeds
3. Harvesting	c. Cutting crops
4. Irrigation	d. Supplying water

E. Very Short Answer Questions

What is a crop?
Name two Rabi crops.
What is threshing?
What are fertilisers?

F. Short Answer Questions

Why is preparation of soil important?
What is the difference between manure and fertiliser?
Explain the process of sowing.
Why should weeds be removed?

G. Long Answer Questions

Explain all the steps involved in crop production.
(Preparation of soil, sowing, adding manure/fertilisers, irrigation, weeding, harvesting, storage)
Describe modern methods of irrigation.
(Explain sprinkler and drip irrigation with advantages)

H. Case-Based Question

A farmer used too many chemical fertilisers in his field. After some time, the soil became less fertile.

Answer the following:

Why did soil fertility decrease?
What should the farmer use instead?
Suggest one eco-friendly farming method.

I. Diagram-Based Question

Draw and label:

Plough
Seed drill
Sprinkler irrigation system

J. Higher Order Thinking Questions (HOTS)

Why is crop rotation important?
What will happen if irrigation is not done properly?
Why should grains be dried before storage?

K. Activity-Based Question

👉 Take some soil and observe it.

Write its colour, texture, and moisture.
Guess whether it is suitable for farming and explain why.
Grow a plant in it. (Take a small pot for soil)

Date: 29 April 2026

Worksheet- 3 (Science)

Chapter: Microorganisms

Multiple Choice Questions (1 × 50 = 50 marks)

The main reason microorganisms are not visible to the naked eye is:
(a) Lack of colour
(b) Extremely small size
(c) Transparent body
(d) Lack of movement
Which group includes both useful and harmful microorganisms?
(a) Viruses
(b) Bacteria
(c) Fungi
(d) All of these
Lactobacillus converts milk into curd by:
(a) Producing oxygen
(b) Fermentation of sugar to lactic acid
(c) Killing pathogens
(d) Absorbing water
The gas responsible for making bread fluffy during baking is:
(a) Oxygen
(b) Nitrogen
(c) Carbon dioxide
(d) Hydrogen
Which of the following diseases is correctly matched with its causative microorganism?
(a) Cholera – Virus
(b) Tuberculosis – Bacteria
(c) Malaria – Fungus
(d) Measles – Protozoa
Viruses are considered special because they:
(a) Can reproduce independently
(b) Are always harmful
(c) Reproduce only inside host cells
(d) Are visible without microscope
Which of the following is NOT a characteristic of antibiotics?
(a) Kill bacteria
(b) Derived from microorganisms
(c) Effective against viruses
(d) Used to treat infections
The misuse of antibiotics may lead to:
(a) Faster recovery
(b) Stronger immunity
(c) Antibiotic resistance
(d) Better digestion
Which microorganism is responsible for nitrogen fixation in leguminous plants?
(a) Yeast
(b) Rhizobium
(c) Amoeba
(d) Virus
Blue-green algae are important because they:
(a) Cause diseases
(b) Produce antibiotics
(c) Fix atmospheric nitrogen
(d) Decompose waste
Pasteurization involves:
(a) Freezing food
(b) Heating then rapid cooling
(c) Drying food
(d) Adding chemicals
The main aim of food preservation is to:
(a) Improve taste
(b) Kill all nutrients
(c) Prevent microbial growth
(d) Increase water content
Which method of preservation removes moisture from food?
(a) Refrigeration
(b) Drying
(c) Boiling
(d) Freezing
A carrier is an organism that:
(a) Produces food
(b) Transfers pathogens
(c) Kills microbes
(d) Stores nutrients
Which disease spreads through contaminated water?
(a) Dengue
(b) Cholera
(c) Tuberculosis
(d) Measles
The nitrogen cycle helps in:
(a) Oxygen production
(b) Maintaining nitrogen balance
(c) Water purification
(d) Heat transfer
Which step in nitrogen cycle converts nitrogen into nitrates?
(a) Fixation
(b) Nitrification
(c) Denitrification
(d) Evaporation
Denitrifying bacteria convert:
(a) Nitrogen → nitrates
(b) Nitrates → nitrogen gas
(c) Oxygen → nitrogen
(d) Carbon dioxide → nitrogen
Which of the following is NOT a preservative?
(a) Sugar
(b) Salt
(c) Vinegar
(d) Oxygen
ORS is mainly used to:
(a) Cure infection
(b) Prevent dehydration
(c) Kill bacteria
(d) Reduce fever
Which of the following is a fungal disease?
(a) Cholera
(b) Ringworm
(c) Polio
(d) Malaria
Fermentation is the process of:
(a) Cooling food
(b) Breaking down sugars by microorganisms
(c) Drying food
(d) Freezing liquids
Which of the following is a protozoan disease?
(a) Measles
(b) Tuberculosis
(c) Malaria
(d) Polio
The discovery of penicillin was made by:
(a) Louis Pasteur
(b) Alexander Fleming
(c) Robert Hooke
(d) Darwin
Which of the following is NOT a method of food preservation?
(a) Salting
(b) Pickling
(c) Keeping in open air
(d) Refrigeration
Microorganisms help in cleaning the environment by:
(a) Photosynthesis
(b) Decomposition
(c) Respiration
(d) Digestion
Vaccination protects us by:
(a) Killing all microbes
(b) Increasing immunity
(c) Adding nutrients
(d) Preventing digestion
Which of the following spreads through air?
(a) Cholera
(b) Tuberculosis
(c) Malaria
(d) Food poisoning
The growth of microorganisms is slowed down by:
(a) Warmth
(b) Moisture
(c) Refrigeration
(d) Oxygen
Which microorganism is used in alcohol production?
(a) Bacteria
(b) Virus
(c) Yeast
(d) Protozoa
Food poisoning is mainly caused by:
(a) Vitamins
(b) Harmful microbes
(c) Proteins
(d) Minerals
Which is NOT a group of microorganisms?
(a) Bacteria
(b) Fungi
(c) Protozoa
(d) Reptiles
Which condition is most suitable for microbial growth?
(a) Dry and cold
(b) Warm and moist
(c) Cold and dry
(d) Hot and dry
The process of converting milk into curd is an example of:
(a) Respiration
(b) Fermentation
(c) Digestion
(d) Transpiration
Which disease is caused by bacteria?
(a) Measles
(b) Cholera
(c) Polio
(d) Dengue
Which of the following is NOT communicable?
(a) Cholera
(b) Tuberculosis
(c) Diabetes
(d) Measles
The main function of preservatives is to:
(a) Add nutrients
(b) Prevent spoilage
(c) Increase size
(d) Change colour
Which method uses high sugar concentration?
(a) Salting
(b) Jam making
(c) Refrigeration
(d) Freezing
Which of the following is a virus-caused disease?
(a) TB
(b) Polio
(c) Cholera
(d) Typhoid
Microorganisms enter our body mainly through:
(a) Air, water, food
(b) Rocks
(c) Sunlight
(d) Soil only
Which of the following prevents diseases?
(a) Dirty water
(b) Vaccination
(c) Open food
(d) Stagnant water
The term “pathogen” refers to:
(a) Useful microbe
(b) Disease-causing organism
(c) Preservative
(d) Nutrient
Which gas is released during fermentation?
(a) Oxygen
(b) Nitrogen
(c) Carbon dioxide
(d) Hydrogen
Which preservation method uses oil and vinegar?
(a) Drying
(b) Pickling
(c) Freezing
(d) Boiling
Which disease spreads by mosquito bite?
(a) Polio
(b) Malaria
(c) Cholera
(d) Measles
The shelf life of food is increased by:
(a) Microbial growth
(b) Preservation methods
(c) Moisture
(d) Warmth
Which of the following is NOT useful?
(a) Making curd
(b) Nitrogen fixation
(c) Causing disease
(d) Decomposition
Antibiotics are ineffective against:
(a) Bacteria
(b) Fungi
(c) Viruses
(d) Protozoa
Which part of plant contains Rhizobium?
(a) Leaves
(b) Roots
(c) Stem
(d) Flowers
The ultimate source of nitrogen in nitrogen cycle is:
(a) Soil
(b) Water
(c) Atmosphere
(d) Plants

Date: 30 April 2026

Worksheet 4: Tense Forms (Eng. Grammar)

Section A: Multiple Choice Questions (MCQs)

Choose the correct option:

She ______ to school every day.
(a) go
(b) goes
(c) going
(d) gone
They ______ football when it started raining.
(a) play
(b) were playing
(c) played
(d) are playing
I ______ my homework already.
(a) finish
(b) finished
(c) have finished
(d) finishing
We ______ to the market yesterday.
(a) go
(b) gone
(c) went
(d) going
He ______ a letter now.
(a) write
(b) writes
(c) is writing
(d) wrote
The train ______ before we reached the station.
(a) leave
(b) leaves
(c) had left
(d) leaving
She ______ TV when I called her.
(a) watch
(b) watched
(c) was watching
(d) watching
They ______ their work by tomorrow.
(a) finish
(b) finished
(c) will finish
(d) will have finished
I ______ him since childhood.
(a) know
(b) knew
(c) have known
(d) knowing
We ______ a movie tonight.
(a) watch
(b) watched
(c) are watching
(d) watches

Section B: Fill in the Blanks

She ______ (eat) breakfast before going to school.
They ______ (play) cricket now.
I ______ (see) that movie last week.
He ______ (study) for two hours.
We ______ (visit) Delhi next month.
She ______ (not complete) her work yet.
The sun ______ (rise) in the east.
I ______ (read) a book when he came.
They ______ (build) a house by next year.
He ______ (live) here since 2010.

Section C: Change the Tense

She writes a letter. (Change to Past Tense)
They are playing football. (Change to Future Tense)
I have completed my work. (Change to Past Tense)
He went to school. (Change to Present Tense)
We will watch a movie. (Change to Present Continuous)

Section D: Error Correction

Find and correct the error:

She go to school daily.
I am knowing the answer.
They has finished their work.
He were playing outside.
We is going to the park.

Section E: Sentence Formation

Rearrange the words to form meaningful sentences:

playing / are / they / cricket
has / she / homework / her / finished
going / we / are / market / the / to
I / seen / have / this / movie
tomorrow / will / come / he

Section F: Short Answer

Write one sentence in Present Continuous Tense.
Write one sentence in Past Perfect Tense.
Write one sentence in Simple Future Tense.
Write one sentence using “since” with Present Perfect.
Write one sentence using “when” with Past Continuous.

Worksheet 5 English Grammar

Narration – Class 8

Instructions:

Change Direct Speech into Indirect Speech.
Change Indirect Speech into Direct Speech.

The teacher said to me, “What are you doing?”
He asked me if I could help him.
Mother said to me, “Why are you late today?”
The doctor advised the patient not to eat oily food.
“Will you lend me your pen?” I said to him.
She told me that she had completed her homework the previous day.
Father said to me, “Are you reading your lessons?”
The teacher advised the students to work hard.
“Can you solve this sum for me?” Rahul said to his friend.
The officer ordered the soldiers to march forward.
The teacher said to me, “Do not waste your time.”
He asked me where I lived.
“May God bless you,” the old man said to me.
Ramen told me that he had lost his pen the day before.
She said to me, “Where do you live?”
Mother advised me not to mix up with bad boys.
The principal said to the students, “Why are you making noise?”
He told me that he had seen the movie the previous night.
“Can you help me with my homework?” she said to her brother.
The captain ordered the players to stand in a line.
Father said to me, “Do not waste money.”
She asked me whether I knew the answer.
“Why are you crying?” Mother said to the child.
The doctor advised the patient to take regular exercise.
“Please shut the door,” the boy said to me.
The teacher asked the students if they had understood the lesson.
“Are you going to school today?” Father said to me.
The policeman ordered the driver to stop the car.
“May you succeed in life,” he said to me.
Rahul told me that he had completed the work the previous day.
The teacher said to the boys, “Keep quiet.”
She asked me why I was laughing.
“Will you help me with this project?” Rita said to her friend.
The manager ordered the workers to finish the task immediately.
“Where have you kept my book?” the teacher said to me.
Mother advised me not to waste electricity.
The stranger asked me where the railway station was.
“Please give me a glass of water,” the old man said to the boy.
He told me that he would visit Guwahati the next week.
The teacher said to me, “Have you completed your homework?”
“Do not run in the corridor,” said the monitor.
She asked me if I liked cricket.
“Why are you shouting?” the principal said to the boy.
The girl requested me to help her with the question.
“Can you lend me your notebook?” she said to me.
The officer ordered the clerk not to make the mistake again.
“I cannot remember where I have kept the keys,” Anita said.
Father asked me why I was wasting my time.
“Please wait for me,” the boy said to his friend.
The teacher told the students that honesty is the best policy.
The teacher said to me, “Why have you not completed your homework?”
He asked me if I was feeling better.
Mother said to the child, “Do not play in the rain.”
The doctor advised the patient to drink plenty of water.
“Will you come to my house tomorrow?” Raju said to me.
She told me that she had visited Delhi the previous year.
Father said to me, “Are you listening carefully?”
The teacher advised the students not to waste time.
“Can you carry this bag for me?” the old man said to the boy.
The officer ordered the peon to open the gate.
The teacher said to me, “Keep your classroom clean.”
She asked me where I had bought the book.
“May you have a happy life,” the woman said to the child.
Rahul told me that he had seen the match the previous evening.
She said to me, “Why are you looking so sad?”
Mother advised me not to talk loudly.
The principal said to the students, “Why are you standing here?”
He told me that he had lost his wallet the day before.
“Can you lend me your bicycle?” the boy said to his friend.
The captain ordered the soldiers to move quickly.
Father said to me, “Do not waste your precious time.”
She asked me whether I had finished my work.
“Why are you disturbing the class?” the teacher said to the boy.
The doctor advised the patient to avoid cold drinks.
“Please help me cross the road,” the old woman said to the girl.
The teacher asked the boy if he knew the answer.
“Are you going to attend the meeting?” he said to me.
The policeman ordered the crowd to move back.
“May God help you,” the priest said to the man.
Anita told me that she had lost her pen the previous day.
The teacher said to the students, “Do not make a noise.”
She asked me why I was absent the previous day.
“Will you join us for dinner?” my friend said to me.
The manager ordered the workers to complete the work on time.
“Where are you going now?” Mother said to me.
Father advised me not to waste electricity.
The stranger asked me where the bus stand was.
“Please give me your notebook,” the teacher said to the student.
He told me that he would return the book the next day.
The teacher said to me, “Have you learnt the poem?”
“Do not write on the wall,” said the monitor.
She asked me if I could solve the problem.
“Why are you laughing so loudly?” the teacher said to the boys.
The girl requested me to wait for her.
“Can you tell me the way to the market?” the stranger said to me.
The officer ordered the servant not to enter the room.
“I cannot remember where I kept my purse,” Rita said.
Father asked me why I had not gone to school.
“Please open the window,” the patient said to the nurse.
The teacher told the students that health is wealth.

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