6.1-The Atmosphere Around You - 2

What is air?

• A pure mixture of gases

• A mixture of gases, water vapors, and other fine particles

• Primarily composed of oxygen gas

• Mainly made of nitrogen gas

How is air pressure defined?

• The force exerted by gravity

• The force exerted by water vapors

• The force exerted by air on any surface

• The force exerted by heat

What instrument is used to measure atmospheric pressure?

• Thermometer

• Hygrometer

• Barometer

• Anemometer

What force pulls the molecules of air downwards?

• Pressure

• Gravity

• Temperature

• Humidity

Tags

NGSS.MS-PS2-4

What happens to air pressure when at a higher altitude?

• It remains constant

• It decreases

• It increases

• It fluctuates

Tags

NGSS.MS-ESS2-5

What happens to air pressure when at a lower altitude?

• It remains constant

• It decreases

• It increases

• It fluctuates

What does altitude refer to?

• The force exerted by air

• The distance above the sea level

• The force exerted by gravity

• The temperature of the air

When the temperature rises, what happens to air pressure?

• It gets lower

• It remains constant

• It increases

• It fluctuates

Tags

NGSS.MS-ESS2-5

When the temperature gets lower, what happens to air pressure?

• It gets lower

• It remains constant

• It increases

• It fluctuates

Tags

NGSS.MS-ESS2-5