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Worksheets

Year-3 and 4 science

Total questions: 69

Worksheet time: 35mins

Name
Class
Date
1.

Which of the following apparatus is used to measure the volume of liquid?

a)

Stopwatch

b)

Thermometer

c)

Measuring cylinder

2.

Which of the following apparatus is used to measure time?

a)

Stopwatch

b)

Test tube

c)

Measuring cylinder

3.

Which of the following statement is not a science room’s rules?

a)

Tidying the science room before left

b)

Conducting the experiment as instructed by teacher

c)

Eats and drinks in science room

4.

Which science process uses all our five senses?

a)

Classifying

b)

Observing

c)

Communicating

5.

Which science process skill use to group objects or events in order based on one common criteria?

a)

Classifying

b)

Reasoning

c)

Observing

6.

When the child is about ___________ years of age ,milk teeth start falling out.

a)

12

b)

2

c)

6

7.

There are __________ canines in a permanent set of teeth.

a)

4

b)

5

c)

6

8.

There are __________ molars in a permanent set of teeth.

a)

12

b)

13

c)

16

9.

Which of the following teeth help to tear food?

a)

Insisors

b)

Molars

c)

canines

10.

How can you help prevent tooth decay?

a)

Brush with fluoride toothpaste

b)

Don’t eat sweets between meals

c)

Both A and B

11.

What are molars used for?

a)

Tearing food

b)

Grinding food into smaller pieces

c)

Biting off chunks of food

12.

What causes erosion?

a)

Drinking too many acidic/fizzy drinks

b)

Eating cheese

c)

Not brushing your teeth

13.

How many teeth does an adult usually have?

a)

20

b)

24

c)

32

14.

How often should you brush your teeth?

a)

Never

b)

Once a day

c)

Twice a day

15.

What age does a baby usually get its first tooth?

a)

5 to 8 months old

b)

2 to 3 years old

c)

12 to 14 months old

16.

What is the breathing organ of animal in the picture?

a)

Gills

b)

Lungs

c)

Moist skin

d)

Spiracle

17.

Which animal has same breathing organ with animal in the picture

a)
b)
c)
d)
18.

Why grasshopper can stay alive after it head is put into water?

a)

because it has power

b)

because it can breathe through lungs

c)

because it can breathe through moist skin

d)

because spiracle is located at the abdomen

19.

Newt has two organ breathing which are ............... and ..............

a)

lungs and gills

b)

spiracle and moist skin

c)

lungs and moist skin

d)

lungs and spiracle

20.

What is the breathing organ of animal in the picture?

a)

Gills

b)

Lungs

c)

Spiracle

d)

Moist skin

21.

Which is the breathing organ of animal shown in the picture?

a)

Lungs

b)

Moist Skin

c)

Spiracle

d)

Gills

22.

Some organisms exchange gases through the sides of their body through tiny holes called _______.

a)

spiracles

b)

diffusion

c)

lungs

d)

oxygen

23.

Fish have organs called _______ that enable oxygen to diffuse into their bodies and carbon dioxide to diffuse out.

a)

tracheal tubes

b)

spiracles

c)

gills

d)

lungs

24.

Which animal breathe through lungs?

a)

Dragonfly

b)

Jellyfish

c)

Turtle

d)

Crab

25.

How frog breathe in the water?

a)

spiracle

b)

lungs

c)

moist skin

d)

gills

26.

An animals with backbone is known as vertebrates.

a)

True

b)

False

27.

Animals without backbone is known as __________

a)

Vertebrates

b)

Invertebrates

28.

Choose the invertebrates animals (more than 1 answer)

a)
b)
c)
d)
e)
29.

Choose vertebrates animals (more than 1 answer)

a)
b)
c)
d)
30.

The tiger is vertebrates. It lives on land and give birth.It breathe using lungs. It also can be classify as ________

a)

Fish

b)

Reptiles

c)

Mammals

d)

Amphibians

31.

A frog is vertebrates. It has moist skin and eat insect. It lives on land and in water. It breathe using lungs and moist skin. It also can be classify as ___

a)

Reptiles

b)

Amphibians

c)

Mammals

d)

Bird

32.

This animal is vertebrates. It lay eggs. It has hard scales and eat meat. It breathe with its lungs.It also can be classify as ____

a)

Mammals

b)

Reptiles

c)

Fish

d)

Amphibians

33.

These animals are ____

a)

Reptiles

b)

Mammals

c)

Fish

d)

Amphibians

34.

These animals are _____

a)

Reptiles

b)

Mammals

c)

Birds

d)

Amphibians

35.

These animals are _____

a)

Mammals

b)

Reptiles

c)

Amphibians

d)

Fish

36.

Rice classified as.................

a)

fats

b)

sugars

c)

carbohydrates

37.

Eating egg provide ...................... for my growth.

a)

protein

b)

fibre

c)

carbohydrate

38.

Potatoes provide me

a)

fibre

b)

protein

c)

carbohydrate

39.

What is the importance of water?

a)

provides energy

b)

regulate body temperature

c)

for growth

40.

The food above is classified as

a)

protein

b)

fats

c)

carbohydrate

d)

vitamins

41.

The food above classified as

a)

protein

b)

fats

c)

carbohydrate

d)

vitamins

42.

The food above are important for

a)

providing energy

b)

growth

c)

preventing constipation

d)

warming up our body

43.

There are 7 classes of food. What is the use of fats?

a)

Provides energy

b)

Keep the body healthy

c)

Warm the body

d)

For growth

44.

Eating fish help me....

a)

regulate body temperature

b)

avoid constipation

c)

grow

45.

I don't like to eat fruits and vegetables. What will happen to me?

a)

Fever

b)

Getting fatter

c)

Constipation

46.

What are the functions of the skeleton?

a)

To keep you warm

b)

To allow you to move

c)

To scare people at Halloween

d)

A framework for your body

47.

Your brain is protected by your

(a)  

48.

Your lungs are protected by your...

(a)  

49.

What do we call a broken bone?

a)

break

b)

fracture

c)

sprain

50.

These animals are all in which group?

a)

Vertebrates

b)

Invertebrates

c)

Exoskeletons

51.

An elephant is a...

a)

Vertebrate

b)

Invertebrate

52.

Muscles help us to...

a)

Move

b)

See

c)

Hear

53.

Choose the correct names for different teeth...

a)

Scissors

b)

Incisors

c)

Molers

d)

Moles

54.

What is the function of incisors?

a)

For cutting

b)

For grinding

c)

For swallowing

d)

None of the above

55.

What is the function of canines?

a)

Tearing

b)

Cutting

c)

Grinding

d)

All of the above

56.

These teeth are big and strong to help you grind food so it can be swallowed.

a)

wisdom teeth

b)

canines teeth

c)

molars teeth

d)

premolar

57.

An adult has ___ teeth.

a)

42

b)

32

c)

22

58.

What is a solid?

a)

It is firm and stable in shape.

b)

It is a substance that flows freely but is of constant volume.

c)

It is an air-like fluid substance which expands freely to fill any space.

59.

What is a gas?

a)

It is firm and stable in shape.

b)

It is a substance that flows freely but is of constant volume.

c)

It is an air-like substance which expands freely to fill any space.

60.

What do these images show you in order?

a)

Liquid, gas and solid.

b)

Gas, solid and liquid.

c)

Solid, liquid and gas.

d)

Liquid, solid and gas.

61.

What happens when a liquid is heated?

a)

It changes to a solid.

b)

It changes to a gas.

c)

It disappears.

d)

It explodes.

62.

What is the process called when a liquid turns to a gas?

a)

Evaporation

b)

Precipitation

c)

Condensation

d)

Vapour

63.

What is the process called when a gas turns to a liquid?

a)

Evaporation

b)

Precipitation

c)

Vapour

d)

Condensation

64.

When does condensation happen?

a)

When a gas escapes outside.

b)

When a gas is heated.

c)

When a gas is cooled.

d)

When a gas touches a surface.

65.

Which of the following statements are true? (select 2)

a)

When molecules are heated, they expand.

b)

When molecules are excited, they explode.

c)

When molecules are heated, they contract.

d)

When molecules are cooled, they contract.

66.

Which conditions would dry a wet material best? (Select 2)

a)

A cold environment.

b)

A wet environment.

c)

A warm environment.

d)

A sunny environment.

67.

When completing an experiment, what is a fair test?

a)

Ensuring everything stays the same.

b)

Changing lots of different variables.

c)

Changing only 1 variable, everything else stays the same.

d)

Changing 2 or 3 variables.

68.

Why is it important to do a fair test?

a)

We can get the results quicker.

b)

It gives us an accurate result, testing only 1 variable.

c)

It looks better in the write up.

d)

It gets us results slower.

69.

Which of these diagrams shows the accurate labels for the Water Cycle?

a)
b)
c)
d)