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Atmosphere and winds

Total questions: 10

Worksheet time: 5mins

Name
Class
Date
1.

Air in our atmosphere is made up of molecules. What state are these molecules found in the atmosphere?

a)

Solid

b)

Liquid

c)

Gas

d)

Inert

2.

The most common molecule that makes up 78% of the air in our atmosphere is....

a)

Nitrogen

b)

Oxygen

c)

Carbon Dioxide

d)

Water vapour

3.

True or false: wind is the sideways movement of air molecules from areas of high pressure to low pressure areas

a)

True

b)

False

4.

Which of the following are true about the air in high pressure areas?

a)

Cool

b)

Warm

c)

Rising

d)

Falling

5.

Which of the following are true about the air in low pressure areas?

a)

Cool

b)

Warm

c)

Rising

d)

Falling

6.

In our atmosphere, high pressure and low pressure systems contain air. But in which one is the air more dense?

a)

High pressure

b)

Low pressure

7.

In the weather map of the USA shown, is the wind blowing east to west or west to east?

a)

East to west

b)

West to east

8.

A low pressure system (or area) is created when air warms up, becomes less dense and rises. What causes the air to warm?

a)

Sunlight from the Sun

b)

Heat energy given off by the ground/sea

c)

Heat from factories

d)

Heat from the Earth's core

9.

Which of the following reduces the amount of carbon dioxide (CO2) whilst increasing the amount of oxygen (O2) in the air?

a)

Photosynthesis

b)

Forest fires

c)

Industrial activity

d)

Respiration (animal breathing)

10.

What is the name of the lowest layer of our atmosphere, which contains 75% of air molecules and most of our weather?

a)

Troposphere

b)

Stratosphere

c)

Mesosphere

d)

Thermosphere