Form 2 Air pressure

Where would you find the largest pressure?

• At the bottom of the ocean
• At the top of Mt Everest
• Close to ground on the Scotch oval
• In a rockpool on the Great Barrier Reef

Where is pressure the greatest on the dam?

• D
• C
• B
• A

What is altitude?

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

As you climb up a mountain what happens to the air pressure?

• decreases
• increases
• stays the same

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

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

Density of air is greater at high altitudes.

• true
• false

Air pressure is greater _______.

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

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

• barometer
• thermometer
• kilometer
• micrometer