Air Composition/Air Pressure Review

The pressure caused by the weight of a column of air pushing down on an area is __________.

• density

• weight

• air pressure

Tags

NGSS.MS-ESS2-5

Elevation above sea level is known as ______.

• altitude

• barometer

• density

Air pressure doesn't crush you because molecules in the air push_________________.

• from side to side only

• down only

• up only

• in all directions

The weight of the air is known as ___________.

• atmosphere

• air pressure

• pressure

• gravity

Another name for atmosphere is

• sun

• air pressure

• gravity

• air

Most abundant gas in the atmosphere (78%)

• oxygen

• Carbon dioxide

• nitrogen

• water vapor

The second most abundant gas in the atmosphere (21%)

• argon

• .oxygen

• nitrogen

• hydrogen

Carbon dioxide, argon and water vapor are all ____________ in the atmosphere (air).

• main gases

• missing

• lesser gases

• trace/other gases

Does air have weight?

• no

• maybe

• yes

other gases such as hydrogen, helium, and argon that are found in the atmosphere make up about ____.

• 21% of the atmosphere

• 78% of the atmosphere

• 1% of the atmosphere

• are not part of the atmosphere