Air/Clouds Quiz

The temperature of air close to the ground is ______________ than air at higher altitudes.

• the same

• warmer

• colder

• both warmer and colder

The blacktop temperature is warmer than the concrete sidewalk because the blacktop _______ the heat from the sun.

• absorbs

• reflects

• absorbs and reflects

• demonstrates

Molecules that are heated up move _______.

• slow

• fast

• the same

• not at all

In the heated balloon video, why did the balloon start to rise? (check all that apply)

• The molecules heated up and moved faster

• The balloon was less dense than the air.

• The molecules heated up and moved slower.

• The balloon was more dense than the air.

How do molecules move when they start to cool down?

• They move faster.

• They don't move.

• They move the same.

• They move slower.

What is the name of the cloud that produces hail?

• cumulus

• cirrus

• cumulonimbus

• cumulostratus

What are clouds made of? (Check all that apply)

• Solids

• Gases

• Water droplets and ice crystals

• Cotton

Why are clouds white?

• They reflect precipitation

• They absorb sunlight

• They reflect sunlight

• They absorb precipitation

Most of the gases in the air are ____________. (Check all that apply)

• oxygen

• helium

• hydrogen

• nitrogen

Water vapor in the air is called ____________.

• temperature

• humidity

• precipitation

• density