Water Cycle

What are three ways that precipitation can come down to Earth?

• Rain

• Hail

• Snow

• Water

Describe condensation:

• Water on Earth's surface is heated by the sun, which causes it to change from liquid to gas/vapor form.

• Water vapor cools down to become liquid again.

• When water falls to Earth's surface from clouds.

• The release of water vapor from the leaves of plants.

Describe evaporation:

• Water on Earth's surface is heated by the sun, which causes it to change from liquid to gas/vapor form.

• Water vapor cools down to become liquid again.

• When water falls to Earth's surface from clouds.

• The release of water vapor from the leaves of plants.

Describe precipitation:

• Water on Earth's surface is heated by the sun, which causes it to change from liquid to gas/vapor form.

• Water vapor cools down to become liquid again.

• When water falls to Earth's surface from clouds.

• The release of water vapor from the leaves of plants.

What is happening when a car window fogs up or the mirror in the bathroom fogs up?

• Condensation

• Evaporation

• Precipitation

• Transpiration

Clouds form from ___________ in the sky?

• Condensation

• Evaporation

• Precipitation

• Transpiration

How much of the Earth's surface is made up of water?

• 51%

• 61%

• 71%

• 81%

Of all of the water on Earth's surface, how much of it is salt water and undrinkable.

• 71%

• 29%

• 3%

• 97%

Of all of the water on the Earth's surface, how much of it is fresh water that humans can actually use?

• Less than 97%

• Less than 3%

• Less than 1%

• Less than 71%

What two things drive the water cycle?

• Sun's heat and cold

• Cold air and water

• Sun's heat and gravity

• Gravity and cold air