Understanding the Water Cycle

What percentage of the Earth's water is saltwater?

• 50%

• 10%

• 96.5%

• 75%

What is the process called when water evaporates from plants?

• Evaporation

• Precipitation

• Transpiration

• Condensation

How long does a water molecule typically stay in the atmosphere?

• 5 days

• 10 days

• 20 days

• 1 day

What is one way water is stored on Earth?

• In the sun

• In rocks

• In ice and snow

• In the wind

How much water can a large oak tree transpire in a year?

• 10,000 gallons

• 40,000 gallons

• 20,000 gallons

• 30,000 gallons

What natural event can bring water from deep in the Earth to the surface?

• Tornado

• Volcanic eruption

• Earthquake

• Hurricane

What is the term for water turning into vapor and rising into the atmosphere?

• Precipitation

• Condensation

• Transpiration

• Evaporation

What happens to water molecules after they condense in the atmosphere?

• They turn into rain, hail, or dew

• They become part of the sun

• They stay in the air forever

• They disappear