Water Unit 3 Review

Where does most of the water evaporation on Earth come from?

• rivers

• oceans

• glaciers

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NGSS.MS-ESS2-4

Which of the following would cause surface ocean water to have a higher salt content?

• high rates of evaporation and low rates of precipitation

• the melting of sea ice

• the flowing of a river into the ocean

Which of the following characteristics alters the density of ocean water?

• temperature and wave speed

• wave size and salinity

• salinity and temperature

Why is the ice melting in picture Y, but not picture X?

• The clouds are heating the water and turning it into ice.

• The clouds are heating the ice and turning it into water.

• The Sun's energy is heating the ice and turning it into water

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NGSS.MS-ESS2-4

Aquifers are sources of

• 
  silica, which is used to make glass and paper products.

• freshwater, which is used for drinking, bathing, and watering crops.

• oil, which is drilled from the aquifer and used to power homes.

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NGSS.MS-ESS2-4

NGSS.MS-ESS3-1

Why are oceans a major part of the water cycle?

• because they are large bodies of salt water that fresh water can be evaporated from

• because the salt water condenses easily to become a gas in the air

• because the salt water runs off onto land to fill lakes and streams

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NGSS.MS-ESS2-4

When is seawater the densest?

• when salinity is low and its temperature is low

• when salinity is high and its temperature is low

• when salinity is high and its temperature is high

Which of the following causes most ocean currents on the water's surface?

• salinity shifts

• evaporation

• prevailing winds

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NGSS.MS-ESS2-6

Which of the following has the biggest effect on deep ocean currents?

• temperature and salinity

• wind and temperature

• tides and salinity

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NGSS.MS-ESS2-6

Surface currents are continual, long-term factors that influence the climate of the Earth. What causes the formation of surface currents?

• differences in density

• water temperature

• global winds

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NGSS.MS-ESS2-6