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

In what direction(s) does air exert pressure?

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

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

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

Something that takes up space and has mass.

• volume

• mass

• density

• matter

The amount of space something takes up.

• density

• volume

• mass

• matter

___________is the result of the weight of a column of air pushing on an area.

• air pressure
• density
• volume
• none of the above

Air pressure is greatest when near Earth's surface because?

• The air molecules are farther apart.
• The air molecules are closer together.
• Air molecules collide.
• Air molecules are tightly packed.