Water on Earth!

What happens when water condenses from its vapor state to its liquid state?

• rain forms

• clouds form

• ice melts

• rivers and lakes flood

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What is one role that the ocean plays in the water cycle?

• it provides salt for the environment

• evaporated ocean water comes down as rain

• wind causes waves on the surface of the ocean

• it has a complex food chain

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NGSS.MS-ESS2-4

In which states of matter is water found naturally in Earth's water cycle?

• solid, liquid and gas

• liquid and gas only

• solid and gas only

• liquid and solid only

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How are evaporation and precipitation connected to the ocean?

• They are processes that return water underground to the ocean.

• They are processes that link the ocean with all of Earth's water.

• They are processes that ensure that most of Earth's water remains in the oceans.

• They are processes that occur only over the ocean.

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NGSS.MS-ESS2-4

You are having a glass of water with ice, and you notice that small water droplets are beginning to form on the outside of the glass. Which part of the water cycle do the droplets represent?

• evaporation

• transpiration

• condensation

• precipitation

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NGSS.MS-ESS2-4

What is the primary role of the ocean in our water cycle?

• primary place where runoff starts

• source of most evaporation

• location of most condensation

• only place for precipitation

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What causes evaporation?

• water freezing and melting

• energy from the sun

• precipitation

• large bodies of water

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NGSS.MS-ESS2-4

Why would you see more clouds during the day than at night?

• Fewer clouds form at night because the sun is not out to evaporate the water.

• Rain clouds dry up throughout the day because of the sun's heat.

• Clouds move towards the mountains throughout the day.

• The moon evaporates the water into the clouds.

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Shahan draws a picture to illustrate the water cycle. He needs to add another step in the cycle to

complete his illustration. Which step is missing from the illustration to complete the water

cycle?

• evaporation

• runoff

• precipitation

• condensation

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NGSS.MS-ESS2-4

Oceans cover over 70% of Earth's surface, and precipitation constantly adds freshwater to the

oceans. Yet, ocean levels remain relatively constant. Which of the following is the best

explanation for why ocean levels remain constant?

• Ocean water is continually absorbed underground into the ocean floor.

• Ocean water is continually changing from a liquid state into a vapor.

• It is very easy to change the ocean levels due to the large size of the oceans.

• Humans alter the level of the oceans due to our need for drinking water.

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NGSS.MS-ESS2-4