Understanding the Water Cycle

What percentage of Earth's surface is covered with water?

• 75%

• 80%

• 65%

• 50%

What is the primary source of energy that drives the water cycle?

• Electricity

• The Moon

• The Sun

• Wind

What happens to water vapor when it rises and meets cooler temperatures?

• It condenses into clouds

• It falls as rain immediately

• It turns into snow

• It disperses into the atmosphere

What is the term used to describe the moisture in the air that makes it feel muggy?

• Evaporation

• Condensation

• Precipitation

• Humidity

Which form of water returns to Earth from clouds?

• Precipitation

• Clouds

• Water vapor

• Ice

What is the process called when the Sun heats water and it turns into vapor?

• Deposition

• Sublimation

• Condensation

• Evaporation

What is the main role of the Sun in the water cycle?

• It pushes the water downstream

• It heats water causing it to evaporate

• It cools the water

• It freezes the water

What happens to precipitation once it hits the Earth's surface?

• It turns into animals' drinking water directly

• It forms new clouds

• It evaporates immediately

• It seeps into the soil or runs off into bodies of water