Air Pressure

What happens to air pressure as you move upward into the atmosphere?

• increases
• decreases
• stays the same

A device that is used to measure atmospheric pressure is a ___________.

• barometer
• thermometer
• kilometer
• micrometer

Air pressure is greater _______.

• at the top of the mountain
• at the bottom of the mountain
• at the center of the mountain

Density of air is greater ________.

• at the top of the mountain
• at the bottom of the mountain
• at the center of the mountain

what are isobars?

• lines connecting places of equal temperature
• lines drawn connecting places of equal pressure
• lines drawn to places of different temperatures
• lines drawn to places of different pressures

What does the air consist of?

• molecules
• helium
• density
• weather

What is altitude?

• how much something weighs
• the distance above sea level
• how big something is
• how far away something is

In what direction(s) does air exert pressure?

• everywhere
• no where
• there is no pressure
• downward

78% of earth's atmosphere is composed of ______________.

• methane
• oxygen
• argon
• nitrogen

What happens to the amount of oxygen molecules as altitude increases?

• fewer molecules
• more molecules
• same amount of molecules
• nothing happens to the molecules