Weather and Water

Weather occurs because of unequal heating of the atmosphere.

• True

• False

The water cycle plays an important role in weather.

• True

• False

Warm air always sinks toward Earth’s surface.

• True

• False

If the relative humidity is 100 percent, it must be raining.

• True

• False

Cumulus clouds may grow very tall because of high air pressure.

• True

• False

Stratus clouds are clouds that form in the stratosphere.

• True

• False

Altostratus clouds form higher in the atmosphere than stratus clouds.

• True

• False

A single raindrop consists of millions of water molecules.

• True

• False

Freezing rain falls through the air as tiny pellets of frozen water.

• True

• False

Snow forms when rain falls through a layer of freezing air before it reaches the ground.

• True

• False