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Science Grade 5 - Changing states

Total questions: 21

Worksheet time: 11mins

Name
Class
Date
1.

The change of water into a gas at its boiling point is...

a)

Melting

b)

Boiling

c)

Evaporating

d)

Condensing

2.

The boiling point of water is....

a)

50°C

b)

0°C

c)

100°C

d)

10°C

3.

The activity above is the process of ..............

a)

Condensation

b)

Perspiration

c)

Aspiration

d)

Evaporation

4.

The rate of evaporation depends on the following, EXCEPT...

a)

The width of space

b)

The temperature of the surroundings

c)

The presence of wind

d)

The surface area

5.

Which statement about evaporation is wrong;

a)

It takes place at any temperature

b)

It takes place at the surface of the liquid

c)

No bubbles are formed

d)

It takes place at the boiling point

6.

The change of a gas into a liquid is called....

a)

Perspiration

b)

Absorption

c)

Condensation

d)

Evaportion

7.

The mist on the cup is happened when it comes into contact with the............. of the surrounding

a)

Hot water

b)

Cool air

c)

Warm Air

d)

Cool water

8.

When the water vapour comes into contact with the cold outer surface of a glass, it loses ........... to the glass

a)

Liquidity

b)

Heat

c)

Coldness

d)

Water droplets

9.

The picture above is another example of ............process

a)

Water vapour

b)

Dewdrops

c)

Condensation

d)

Evaporation

10.

The water cycle is driven by .................... from the Sun

a)

Tiny water

b)

Heat energy

c)

Water droplets

d)

Snow

11.

The resources of water in water cycle process are, EXCEPT...

a)

Oceans

b)

Lakes

c)

Rivers

d)

Bathtub water

12.

As more water vapour condenses, the tiny water droplets in clouds form bigger droplets and fall to the Earth's surface as..........

a)

Snow

b)

Rain

c)

Steam

d)

Vapour

13.

Water vapor cools and condenses, forming..........

a)

Cloud

b)

Rain

c)

Snow

d)

Water droplets

14.

Water evaporates from......

a)

Oceans

b)

Rivers

c)

Land

d)

Seas

15.

The white trails formed by the planner is called....

a)

Dust

b)

Smoke

c)

Contrails

d)

Ice crystals

16.

Water cycle is very important for living things because...

a)

It can produce a constant supply of fresh water

b)

It can give food for living things

c)

It can give light to survive

d)

It can produce carbon dioxide

17.

Big water droplets fall to the Earth's surface as rain and they fall as snow if the temperature is ........

a)

Low

b)

High

c)

Hot

d)

Freezing

18.

Without the water cycle, living things would not have enough............. to survive

a)

Sun light

b)

Fresh water

c)

Fresh air

d)

Fresh food

19.

The water vapor rises in the air. Higher up in the air, This causes the water vapor to condense and form....

a)

Rain

b)

Clouds

c)

Tiny water droplets

d)

Snow

20.

The water cycle is the continuous movement of water from the Earth's surface to the ....... and back to the Earth's surface.

a)

Air

b)

Heat

c)

Water

d)

Droplets

21.

The change of water into a gas at its boiling point is...

a)

Melting

b)

Boiling

c)

Evaporating

d)

Condensing