Weather, Water and Air Test 2

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Weather, Water and Air Test 2

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Weekly Quiz Competition

Question 1
1 / -0

Which of the following is NOT true regarding the properties of air?

A
Air occupies space

B
Air exerts pressure

C
Air has no mass

D
Air cannot be seen

Solution

Air is a matter. It has mass.
Question 2
1 / -0

The burning of fire needs

A
oxygen

B
carbon dioxide

C
nitrogen

D
water vapour

Solution

The burning of fire needs oxygen.
Question 3
1 / -0

Asma took two balloons. She blew air with mouth in one balloon and she filled another balloon with the vapours of boiling water. She released the two balloons and observed that the balloon with the hot vapours rose higher than the other balloon. What did she learn from this experiment?

A
Hot air is heavier than the cold air

B
Water vapour give energy to the balloon

C
Air likes hot balloons

D
Hot air is lighter and therefore rises higher

Solution

Hot air has less weight.
Question 4
1 / -0

When Suresh blew air into a balloon it expanded. This shows that

A
air has no mass.

B
air fills space.

C
air has no weight.

D
air is visible.

Solution

Air occupies space.
Question 5
1 / -0

Which of the following does NOT disturb the balance of gases in the air?

A
Cutting down trees and forests.

B
Releasing polluting gases into the air.

C
Growing trees.

D
Releasing smoke from the vehicles.

Solution

Trees and plants maintain the balance of gases in the air.
Question 6
1 / -0

When we blow air into a balloon it expands. What is the reason?

A
Air is invisible.

B
Air does not occupy space.

C
Air has weight.

D
Air exerts pressure.

Solution

Air exerts pressure on the walls of the balloon and it expands.
Question 7
1 / -0

Which of the following changes weather?

A
The sun

B
Man

C
Wood

D
Television

Solution

The sun changes the weather conditions.
Question 8
1 / -0

Answer questions 10 based on the following figure.

Arrow 1 represents

A
land breeze.

B
sea breeze.

C
movement of water.

D
movement of soil.

Solution

Arrow 1 represents land breeze.
Question 9
1 / -0

Germs present in tap water can be killed by

A
filtration

B
condensation

C
boiling

D
decantation

Solution

Germs present in tap water can be killed by boiling.
Question 10
1 / -0

The figure below shows an activity which was carried out in a laboratory.

Which of the following phenomena was exhibited by 'X?

A
Freezing of water.

B
Condensation of water vapour.

C
Evaporation of water.

D
Expansion of water.

Solution

In the given figure 'X' represents the condensation of water vapour.

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Weather, Water and Air Test 2

Result

Weather, Water and Air Test 2

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SHARING IS CARING

Question 1

Air occupies space

Air exerts pressure

Air has no mass

Air cannot be seen

Solution

Question 2

oxygen

carbon dioxide

nitrogen

water vapour

Solution

Question 3

Hot air is heavier than the cold air

Water vapour give energy to the balloon

Air likes hot balloons

Hot air is lighter and therefore rises higher

Solution

Question 4

air has no mass.

air fills space.

air has no weight.

air is visible.

Solution

Question 5

Cutting down trees and forests.

Releasing polluting gases into the air.

Growing trees.

Releasing smoke from the vehicles.

Solution

Question 6

Air is invisible.

Air does not occupy space.

Air has weight.

Air exerts pressure.

Solution

Question 7

The sun

Man

Wood

Television

Solution

Question 8

land breeze.

sea breeze.

movement of water.

movement of soil.

Solution

Question 9

filtration

condensation

boiling

decantation

Solution

Question 10

Freezing of water.

Condensation of water vapour.

Evaporation of water.

Expansion of water.

Solution

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