Module Review Earth's Water System

Where does the water go when water evaporates from a puddle on the street?

• It goes into a nearby river or stream.

• It sinks into the street.

• It rises into the atmosphere.

• It goes into outer space.

Groundwater is important for living things to be able to use because:

• it is a primary source of drinking water.

• it is not used by living things.

• it is only found in oceans.

• it is not important at all.

Which best explains why it is important for humans to conserve freshwater?

• Earth's water supply is shrinking.

• Earth's water supply is growing larger.

• Once we use all of Earth's freshwater, it is gone forever.

• Only a small fraction of Earth's water is freshwater, and everyone needs it.

Which are sources of freshwater? Select all that apply.

• rivers

• oceans

• aquifers

• reservoirs

Building a dam is one way to store water because it:

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Answer explanation

Building a dam stores water by holding it in a reservoir, so it can be used for drinking, farming, or electricity.

water can harm living things.

All water on Earth is recycled through ______.

• the water cycle

• pockets of nitrogen

• exhaled gas

• dead organic material

Which of the following are ways to conserve water?

• Using water-efficient fixtures and fixing leaks

• Leaving the tap running while brushing teeth

• Watering the garden during the hottest part of the day

• Ignoring dripping faucets

Which of the following can happen when water interacts with rock formations? Select all that apply.

• climate changes

• a canyon forms

• sediment forms

• rain falls

• high tide occurs

All of Earth’s liquid and solid water make up the _________________.

• hydrosphere

• atmosphere

• lithosphere

• biosphere