Unit 6 Study Guide: Water on Earth

How is the Sun the major source of energy in the water cycle?

• It provides the energy to condense atmospheric water vapor into rain.

• It provides the energy to evaporate water on Earth into the atmosphere.

• It provides the energy to create winds that blow air masses across Earth.

• It provides the energy needed for water to be transported downhill from mountains to rivers and oceans.

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What comes after runoff in the water cycle?

• Evaporation

• Condensation

• Precipitation

• Collection

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What step comes after infiltration in the water cycle?

• collection

• groundwater

• transpiration

• runoff

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Why does rain fall to the ground?

• The extreme heat in the atmosphere causes the water vapor to get less dense. Gravity pulls it to the ground.

• The wind blows the clouds together, causing storm clouds to form and start raining.

• The temperature in the atmosphere cools enough so that the water vapor gets more dense. Gravity pulls it to the ground.

• The sky gets warmer the higher up you go, so the clouds are evaporated back into liquid form.

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NGSS.MS-ESS2-4

Which process in the water cycle forms clouds?

• Evaporation

• Condensation

• Precipitation

• Runoff

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If we start with the ocean, what is the order of the steps in the water cycle?

• Evaporation, Condensation, Precipitation, Runoff, Collection

• Precipitation, Runoff, Collection, Evaporation, Condensation

• Evaporation, Collection, Precipitation, Condensation, Runoff

• Condensation, Evaporation, Precipitation, Collection, Runoff

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NGSS.MS-ESS2-4

Which term applies to water that falls on land and flows towards a body of water?

• Condensation

• Precipitation

• Runoff

• Collection

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What percent of Earth's water is freshwater?

• 20%

• 10%

• 5%

• 3%

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NGSS.MS-ESS3-1

Where is MOST of Earth's freshwater located?

• lakes

• groundwater

• rivers

• ice caps & glaciers

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NGSS.MS-ESS3-1

Where is most of Earth's ACCESSIBLE (not frozen) freshwater located?

• lakes

• groundwater

• rivers

• ice caps & glaciers

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