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Unit 1: Layers of the Atmosphere Review

Total questions: 27

Worksheet time: 13mins

Name
Class
Date
1.

Mixture of gases held to Earth by gravity

a)

ionosphere

b)

atmosphere

c)

clouds

d)

ozone layer

2.

Match the following gases with the percentage they make up in Earth’s atmosphere.

a)

Oxygen

1.

Makes up about 21% of Earth’s atmosphere

b)

Carbon dioxide

2.

Makes up about 0.04% of Earth’s atmosphere

c)

Nitrogen

3.

Makes up about 78% of Earth’s atmosphere

d)

Argon

4.

Makes up about 0.93% of Earth’s atmosphere

3.

Most weather occurs in the troposphere because it contains most of the atmosphere’s_____________ .

a)

highest temperatures

b)

water vapor

c)

gravity

d)

ultraviolet radiation

4.

Layer where temperature increase with altitude because of ozone absorption

a)
Troposphere
b)
Stratosphere
c)
Mesosphere
d)
Exosphere
5.

Coldest layer of the atmosphere

a)
Troposphere
b)
Stratosphere
c)
Mesosphere
d)
Thermosphere
6.

As altitude increases, air pressure generally (a)   .

Choose from the below words
Increases
Decreases
Stays the same
Changes randomly
7.

Match each atmospheric layer with its temperature characteristic due to solar radiation absorption.

a)

Troposphere

1.

Layer where temperature decreases with altitude due to limited solar absorption.

b)

Stratosphere

2.

Layer where temperature increases due to ozone absorbing solar radiation.

c)

Thermosphere

3.

Layer where temperature rises dramatically due to absorption of solar radiation.

d)

Mesosphere

4.

Layer where temperature decreases to the coldest in the atmosphere before rising again.

8.
Why does the thermosphere feel cold despite very high temperatures?
a)
Water vapor freezes
b)
There are very few gas particles to transfer heat
c)
Ozone blocks heat
d)
The Sun is farther away
9.
Which layer is most important for protecting life from ultraviolet radiation?
a)
Troposphere
b)
Stratosphere
c)
Mesosphere
d)
Exosphere
10.
Commercial airplanes often fly in the lower stratosphere because it:
a)
Has more oxygen
b)
Has smoother air and fewer storms
c)
Is the warmest layer
d)
Has higher air pressure
11.

Match the following atmospheric layers with how temperature changes with altitude in each layer.

a)

Increases with altitude

1.

Stratosphere

b)

Remains constant

2.

Tropopause

c)

Decreases with altitude

3.

Troposphere

d)

Changes unpredictably

4.

Mesosphere

12.
Which factor keeps Earth’s atmosphere from drifting into space?
a)
Solar radiation
b)
Gravity
c)
Weather patterns
d)
Magnetic fields
13.
Which gas is most responsible for weather processes?
a)
Nitrogen
b)
Water vapor
c)
Argon
d)
Carbon monoxide
14.

Layer with the greatest air pressure

a)
Troposphere
b)
Stratosphere
c)
Mesosphere
d)
Thermosphere
15.
What happens to air density as altitude increases?
a)
Increases
b)
Decreases
c)
Stays the same
d)
Becomes solid
16.
Which layer is directly above the troposphere?
a)
Stratosphere
b)
Mesosphere
c)
Thermosphere
d)
Exosphere
17.
Which layer has temperatures that decrease with altitude after the stratosphere?
a)
Troposphere
b)
Stratosphere
c)
Mesosphere
d)
Thermosphere
18.
Which layer contains most of the mass of Earth’s atmosphere?
a)
Troposphere
b)
Stratosphere
c)
Mesosphere
d)
Thermosphere
19.
Which statement about the atmosphere is correct?
a)
All layers have the same temperature
b)
Different layers have different temperature trends
c)
Weather occurs in all layers
d)
The atmosphere ends suddenly
20.
Which is the best reason Earth’s atmosphere is essential for life?
a)
It blocks all sunlight
b)
It keeps Earth completely warm
c)
It provides gases for life and regulates temperature
d)
It prevents gravity
21.

Which substance has the lowest density?

a)
Karo Syrup
b)
Honey
c)
Lamp Oil
d)
Water
22.

Which sample is the most dense?

a)
A
b)
B
c)
C
23.

Label the diagram that shows the 3 types of heat transfer

a)

conduction

b)

convection

c)

radiation

1
2
3
1)
2)
3)
24.

The atmosphere is divided into layers based on

(a)  

Choose from the below words
temperature
water amount
gasses
25.
Question Image

Match the following Layer to the correct number from the Diagram

a)

Stratosphere

1.

2

b)

Mesosphere

2.

3

c)

Troposphere

3.

1

d)

Thermosphere

4.

4

26.
Question Image

Match the following

a)

Satellites orbit here and transitions to outer space

1.

Exosphere

b)

Thermosphere

2.

where auroas occur (Northern and Southern lights), contains the ionosphere

c)

Mesosphere

3.

meteors burn up here

d)

Troposphere

4.

weather occurs here

e)

Stratosphere

5.

where ozone layer is found

27.

This absorbs harmful radiation

a)

clouds

b)

ozone layer

c)

exosphere

d)

radiant layer

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