Front

What is the water cycle?

Back

The water cycle is the process by which water moves from the ground to the sky and back again.

Front

Where does most of the evaporated water on Earth come from?

Back

Most of the evaporated water comes from the oceans.

Front

What happens when water evaporates?

Back

When water evaporates, it changes from a liquid to a gas.

Front

What is condensation in the water cycle?

Back

Condensation is when water vapor cools and changes back into liquid water, forming clouds.

Front

What happens when water vapor condenses and collects in the atmosphere?

Back

Clouds can form in the sky.

Front

What is precipitation?

Back

Precipitation is any form of water that falls from the sky, like rain or snow.

Front

What is runoff?

Back

Runoff is water that flows over the ground and can go into streams or rivers.

Front

What might happen if it rains in a polluted area?

Back

Rain might carry pollution into rivers.

Front

What is evaporation?

Back

Evaporation is the process of water changing from a liquid to a gas.

Front

What is the role of the sun in the water cycle?

Back

The sun heats water, causing it to evaporate.