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Grade 4 science revision

Total questions: 20

Worksheet time: 20mins

Name
Class
Date
1.

Anita investigates how quickly water evaporates. She does her experiment 3 times. What variable is she CHANGING?

a)

The volume (amount) of water.

b)

The temperature of the water.

c)

The size of the beakers.

d)

The time she leaves the beakers for.

2.

To find out which soil holds the most water, which variable is most important to keep the same?

a)

The volume (amount) of water added.

b)

The volume (amount) of water drained.

c)

The shape of the beaker.

d)

The size of the beaker.

3.

It is best for a bike frame to be light and strong. Which metal would be best for a bike frame?

a)

Aluminium-strong (3g)

b)

Iron - strong (8g)

c)

copper - weak (9g)

d)

zinc - strong (7g)

4.

A boy observes a hard, shiny and hard to break object. What is this object made from?

a)

Paper

b)

metal

c)

Plastic

d)

glass

5.

What happens to your heart rate when you exercise?

a)

When people exercise their heart rates increase.

b)

Their temperature decreases (gets lower)

c)

Their muscles get longer.

d)

Their bodies get stronger.

6.

Which of these cannot be separated by a sieve?

a)

pasta and water

b)

meatballs and sauce

c)

juice and fruit

d)

oil and vinegar

7.

What happens to the lamp when you open the switch?

a)

It lights up

b)

It turns off

c)

It becomes dim (less bright)

d)

It becomes hot

8.

Which mixture can be separated by filtering?

a)

sand and water

b)

salt and sugar

c)

oil and vinegar

d)

flour and rice

9.

Which equipment would you use to measure the volume of rain collected in a jug?

a)

measuring cylinder

b)

scale

c)

thermometer

d)

ruler

10.

What role do honeybees play in the life cycle of some flowering plants?

a)

Honeybees help spread some plant seeds.

b)

Honeybees help plants reproduce.

c)

Honeybees help to make plants’ food.

d)

Honeybees help to protect the plant.

11.

Asma wants to cover a cake with chocolate. What must she do to the chocolate bar before she can pour it over the cake?

a)

Dissolve it in water

b)

melt it

c)

filter it

d)

evaporate it

12.

Polar bears usually stand on floating ice when they hunt. How would warmer temperatures affect polar bears?

a)

There would be more ice so hunting would be easier.

b)

There would be less ice so hunting would be easier.

c)

There would be more ice so hunting would be harder.

d)

There would be less ice so hunting would be harder.

13.

Birds lay eggs. What do all birds’ eggs need from their surroundings to hatch?

a)

food

b)

warmth

c)

nest

d)

tree

14.

Which of the following completes the sentence? Most mammals…

a)

Give birth to live young.

b)

Have feathers.

c)

Have moist skin

d)

Lay eggs

15.

Which orbit takes one year?

a)

The Earth orbiting the Moon.

b)

The Earth orbiting the Sun.

c)

The Sun orbiting the Earth.

d)

The Moon orbiting the Earth.

16.

The moon orbits the Earth about once every?

a)

year

b)

week

c)

day

d)

month

17.

Which statement best explains why the Sun appears in the horizon every morning?

a)

The Earth completes one rotation on its axis each day.

b)

The Sun moves around the Earth once each day.

c)

The Earth makes a complete orbit around the Sun each day.

d)

The moon stops blocking the light from the Sun each day.

18.

Which material is most likely to be the first to feel hot?

a)

plastic

b)

glass

c)

metal

d)

wood

19.

Which stage comes after the larva stage?

a)

egg

b)

caterpillar

c)

pupa

d)

adult

20.

Which of these actions is an observation?

a)

Gathering equipment for a plant investigation.

b)

Measuring how much a plant grows each day for a week.

c)

Predicting how much a plant will grow in one week.

d)

Explaining why a plant grew differently under certain conditions.