Weather and Climate/Week 5

The Earth’s atmosphere is divided into layers.

_____________ makes up more than ¾ of what we consider to be “air” and oxygen makes up most of the rest.

• oxygen

• nitrogen

• liquid

• solid

The layer closest to the earth is

where _____________ takes place. Water vapor is located in this layer.

• action

• nothing

• weather

• runoff

Liquid water on Earth becomes a gas, called water vapor, as part of the air through the process of

_____________________.

• evaporation

• condensation

• precipitation

• run off

The process of evaporation results from the

_____________heat energy.

• lightning

• clouds

• grounds

• suns

____________________ happens in the air as water vapor changes back to droplets of water.

• precipitation

• condensation

• evaporation

• runoff

_____________form as a result of condensation.

• floods

• drought

• clouds

• thunder

The process of condensation

results from the

__________________of the air temperature.

• cooling

• heating

• freezing

• change

After condensation occurs, any form of water that falls from the clouds is called ______________________.

• condensation

• runoff

• evaporation

• precipitation

If precipitation falls on land surfaces, it attempts to return to the ocean or lakes as __________________.

• runoff

• evaporation

• precipitation

• condensation

The _____________ of a sound is how high or low it is.

• frequency

• vibration

• pitch

• style