Front

What causes your ears to pop on an airplane?

Back

A change in altitude.

Front

True or False: Differences in air pressure cause wind.

Back

True.

Front

True or False: The weather of an area is affected by the air mass that is passing over it.

Back

True.

Front

Which two processes cause clouds to form?

Back

Evaporation and condensation.

Front

As altitude increases, air pressure _______.

Back

Decreases.

Front

What is weather?

Back

The state of the atmosphere at a specific time and place, including temperature, humidity, precipitation, and wind.

Front

What is an air mass?

Back

A large body of air that has similar temperature and humidity characteristics.

Front

What is evaporation?

Back

The process by which water changes from a liquid to a gas.

Front

What is condensation?

Back

The process by which water vapor in the air cools and changes back into liquid water.

Front

What is precipitation?

Back

Any form of water, liquid or solid, that falls from the atmosphere to the Earth's surface, such as rain, snow, sleet, or hail.