Quiz on Air Composition and Humidity

What is the main component of air by volume?

• Oxygen

• Nitrogen

• Carbon dioxide

• Argon

Tags

NGSS.MS-PS1-1

What is the approximate percentage of oxygen in the air?

• 78%

• 21%

• 1%

• 6%

What term is used to describe water in its gas form in the air?

• Humidity

• Vapor

• Water vapor

• Condensation

Tags

NGSS.MS-PS1-4

What does a relative humidity of 100% indicate?

• The air is dry

• The air is at maximum water vapor capacity

• The air is only water vapor

• The air is at minimum water vapor capacity

Tags

NGSS.MS-ESS2-5

NGSS.MS-ESS2-6

What is the role of humidity probes?

• To measure temperature

• To measure air pressure

• To measure changes in water vapor

• To measure wind speed

What is the relative humidity shown by the probe in the image?

• 19.5%

• 39%

• 78%

• 100%

Tags

NGSS.MS-ESS2-4

NGSS.MS-ESS2-5

What is the approximate percentage of nitrogen in the air?

• 21%

• 78%

• 1%

• 6%

Which gas is present in the air in the smallest amount by volume?

• Nitrogen

• Oxygen

• Argon

• Carbon dioxide

What is the term for the amount of water vapor in the air?

• Precipitation

• Humidity

• Dew point

• Saturation

Tags

NGSS.MS-ESS2-5

What does a relative humidity of 39% indicate about the air's water vapor content?

• It is at maximum capacity

• It is at minimum capacity

• It is about halfway between minimum and maximum

• It is completely dry

Tags

NGSS.MS-ESS2-4