January 12, 2021 Science Warm Up

Pollution can enter our groundwater when -

• Pollution spilled on the surface percolates down through soil and rocks

• Underground storage tanks crack and leak

• Underground sewer and septic pipes crack and leak

• All of these

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Look at the diagram of the water cycle. When heat from the sun turns water into water vapor this is called:

• Evaporation

• Condensation

• Precipitation

• Runoff

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Water that is found underground in the cracks and spaces in soil, sand and rock is called:

• Groundwater

• River

• Surface water

• Snow

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There is only about 1% of freshwater available for use on Earth.

• True
• False

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Which represents the distribution of water on Earth?

• 3% freshwater, 97% salt water
• 97% freshwater, 3% salt water
• 71% freshwater, 29% salt water
• 29% freshwater, 71% salt water

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Where is most of Earth's water located?

• polar ice caps

• groundwater

• oceans

• atmosphere

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Where do humans get most of the water they use?

• rivers and lakes

• polar ice caps

• water vapor

• groundwater

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In order for water vapor to form, what must occur?

• Precipitation

• Condensation

• Evaporation

• Transpiration

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Water underground is stored in ____________.

• aquifers

• reservoirs

• wells

• depositories

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Where is most of earth's freshwater found?

• in lakes and rivers
• in the ground
• in the clouds
• in polar ice caps and glaciers

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