wayground logo

Free Printable Worksheets

Font size

S
M
L
XL
Worksheets

Class 4 Science Question Bank - ICSE

Total questions: 46

Worksheet time: 1hrs 16mins

Name
Class
Date
1.

Air is an example of:

a)

Solid

b)

Liquid

c)

Gas

d)

Plasma

2.

Which of the following best describes air?

a)

It has a fixed shape

b)

It has a fixed volume

c)

It takes the shape of its container

d)

It cannot be compressed

3.

Air is classified as:

a)

Pure substance

b)

Mixture

c)

Compound

d)

Element

4.

Which gas makes up the largest portion of air?

a)

Oxygen

b)

Nitrogen

c)

Carbon dioxide

d)

Water vapor

5.

Approximately what percentage of air is oxygen?

a)

78%

b)

21%

c)

1%

d)

0.03%

6.

Which gas in air supports burning?

a)

Nitrogen

b)

Carbon dioxide

c)

Oxygen

d)

Water vapor

7.

When air is heated, it:

a)

Contracts

b)

Expands

c)

Remains same

d)

Becomes liquid

8.

Air can be compressed because:

a)

It is heavy

b)

It has spaces between particles

c)

It is colorless

d)

It moves fast

9.

Ravi tried to push an empty glass upside down into a bowl of water. The water did not fill the glass completely. Explain why this happened and what does this prove about air?

4 lines
10.

When you blow air into a balloon, it expands. What property of air does this demonstrate? Explain with reasons.

4 lines
11.

A plastic bottle filled with air and tightly closed was kept in the sun. After some time, the bottle appeared swollen. Why did this happen?

4 lines
12.

Priya covered a burning candle with a glass jar. After some time, the candle went out. Explain why this happened and what it tells us about air.

4 lines
13.

If you have two identical balloons, one filled with hot air and another with cold air, which one will be lighter? Justify your answer with scientific reasoning.

4 lines
14.

A student claims that air has no weight because we cannot see it. Do you agree or disagree? Provide evidence to support your answer.

4 lines
15.

The process of taking air into our lungs is called:

a)

Exhalation

b)

Inhalation

c)

Respiration

d)

Circulation

16.

We breathe in:

a)

Carbon dioxide

b)

Nitrogen

c)

Oxygen

d)

Water vapor

17.

We breathe out:

a)

Oxygen

b)

Carbon dioxide

c)

Nitrogen

d)

Hydrogen

18.

Which of the following is a major cause of air pollution?

a)

Vehicle exhaust

b)

Clean water

c)

Fresh air

d)

Green plants

19.

Planting more trees helps to:

a)

Increase pollution

b)

Reduce pollution

c)

Create pollution

d)

Spread pollution

20.

Explain how air pollution affects our health and the environment.

4 lines
21.

Which nutrient provides energy to our body?

a)

Vitamins

b)

Carbohydrates

c)

Minerals

d)

Water

22.

Proteins are needed for:

a)

Energy

b)

Growth and repair

c)

Protection from diseases

d)

Proper eyesight

23.

Which vitamin is known as sunshine vitamin?

a)

Vitamin A

b)

Vitamin B

c)

Vitamin C

d)

Vitamin D

24.

Iron is an example of:

a)

Carbohydrate

b)

Protein

c)

Vitamin

d)

Mineral

25.

The main function of water in our body is to:

a)

Provide energy

b)

Help in digestion

c)

Build muscles

d)

All of the above

26.

Rohit's mother packs his lunch box with rice, dal, vegetables, and milk. Identify the nutrients present in each food item and explain their importance.

4 lines
27.

Why is it important to include fruits and vegetables in our daily diet? Name the nutrients they provide.

4 lines
28.

Compare the nutritional requirements of a growing child versus an elderly person. What similarities and differences would you expect?

4 lines
29.

"Fast food is always harmful." Do you agree with this statement? Provide reasons for your answer.

4 lines
30.

Which method of food preservation removes water from food?

a)

Freezing

b)

Boiling

c)

Drying

d)

Salting

31.

Refrigeration helps preserve food by:

a)

Adding chemicals

b)

Slowing down bacterial growth

c)

Removing air

d)

Adding salt

32.

Explain why milk stays fresh longer when kept in the refrigerator compared to keeping it outside.

4 lines
33.

Your grandmother dries vegetables in sunlight during summer. Explain how this method helps preserve food.

4 lines
34.

In sugar water, sugar is the:

a)

Solvent

b)

Solute

c)

Solution

d)

Mixture

35.

The liquid in which substances dissolve is called:

a)

Solute

b)

Solvent

c)

Solution

d)

Suspension

36.

When salt dissolves in water, the resulting mixture is called:

a)

Compound

b)

Element

c)

Solution

d)

Suspension

37.

Which of the following is insoluble in water?

a)

Salt

b)

Sugar

c)

Oil

d)

Honey

38.

Sand is insoluble in water because:

a)

It is heavy

b)

It is light

c)

Its particles don't mix with water

d)

It is colored

39.

Ravi tried to dissolve different substances in water: salt, sugar, oil, and sand. Predict which substances will dissolve and which will not. Give reasons for your predictions.

4 lines
40.

Muddy water was left undisturbed in a glass for some time. What would you observe? Name the process occurring here.

4 lines
41.

What would you observe? Name the process occurring here.

4 lines
42.

How would you obtain salt from salt water? Describe the process and explain the science behind it.

4 lines
43.

What type of substances can be separated by filtration?

4 lines
44.

Explain how sedimentation and decantation work together to purify muddy water.

4 lines
45.

Why is decantation easier after sedimentation?

4 lines
46.

How is salt obtained from seawater? Explain the process.

4 lines

Similar Resources on Wayground

HELE 4 Review Act- 3rd GP

45 questions

HELE 4 Review Act- 3rd GP

quiz

Worksheet

•

4th Grade

Merawat hewan dan tumbuhan

50 questions

Merawat hewan dan tumbuhan

quiz

Worksheet

•

1st - 5th Grade

ES TEST 10

50 questions

ES TEST 10

quiz

Worksheet

•

1st - 5th Grade

Class V English Question Bank

50 questions

Class V English Question Bank

quiz

Worksheet

•

4th Grade

UTS Bahasa Indonesia X

50 questions

UTS Bahasa Indonesia X

quiz

Worksheet

•

1st - 5th Grade