Atmosphere and Air Pressure

The layer is both the hottest and thickest layer of the atmosphere.

• Thermosphere

• Stratosphere

• Mesosphere

• Exosphere

What is the measure of the force of the gases (air) pushing down on the Earth's surface called?

• temperature

• gravity

• atmosphere

• air pressure

Greatest air pressure because it has the most molecules.

• Troposphere

• Stratosphere

• Mesosphere

• Thermosphere

• All of the above.

Tags

NGSS.MS-ESS2-5

Warm air is ______ dense than cool air. Warm air rises and cool air sinks.

• less

• more

Tags

NGSS.MS-ESS2-5

Air is a mixture of many gases. The gas that makes up the LARGEST percentage of the atmosphere is

• nitrogen

• oxygen

• carbon dioxide

• helium

Which choice lists 3 layers of the atmosphere ordered from farthest from Earth's surface to closest to Earth's surface?

• mesosphere, troposphere, stratosphere

• exosphere, mesosphere, thermosphere

• thermosphere, exosphere, stratosphere

• exosphere, mesosphere, troposphere

What is the second most abundant gas in the atmosphere at 21%?

• oxygen

• nitrogen

• argon

• carbon dioxide

Which boy is experiencing warmer temperatures?

• the boy standing on top of the mountain

• the boy standing at the bottom of the mountain

Tags

NGSS.MS-ESS2-5

NGSS.MS-ESS2-6

What gas makes up the largest proportion of air at 78%?

• oxygen

• nitrogen

• argon

• carbon dioxide

Contains the Ozone Layer.

• Troposphere

• Stratosphere

• Mesosphere

• Thermosphere

• All of the above.