Weather

Front

What is weather?

Back

The state of the atmosphere at any particular time.

Front

What instrument is used to measure humidity?

Back

Hygrometer

Front

If the air is only holding one-third as much moisture as it can possibly hold, what is the relative humidity?

Back

33 percent

Front

What is the term for the boundary where two different air masses meet?

Back

Front

Front

What is the primary cause of wind?

Back

Differences in air pressure.

Front

What is climate?

Back

The average weather conditions in a particular area over a long period.

Front

What is a barometer used for?

Back

To measure atmospheric pressure.

Front

What is the water cycle?

Back

The continuous process by which water moves from the Earth's surface to the atmosphere and back.

Front

What is a tornado?

Back

A rapidly rotating column of air that extends from a thunderstorm to the ground.

Front

What is an anemometer used for?

Back

To measure wind speed.