The Water Cycle

What happens when water evaporates?

• It changes from a liquid to a gas. (water to vapor)

• It changes from a gas to a liquid (vapor to water)

What might happen if it rains in a polluted (trash, litter) area?

• Pollution (trash) will keep the area from flooding.

• Rain might carry pollution (trash) into rivers.

What powers (gives energy to) the water cycle?

• wind

• the Sun

What happens when there is more water than the air can hold?

• The water falls to the ground as precipitation (rain).

• The water turns into vapor and rises up into the sky.

Where is most of the Earth's water?

• Under the ground.

• In the oceans.

Which of these is a form of precipitation?

• wind

• rain

What happens when water vapor (gas), condenses in the sky?

• Clouds are formed from the water droplets.

• The sun shines brighter.

What happens during the collection phase of the water cycle?

• Water falls as precipitation (rain, snow, sleet or hail).

• Water collects in oceans, lakes and streams.

What happens when water heats up?

• precipitation

• evaporation

What happens when water vapor cools off?

• condensation

• evaporation