Earth's Water System Quiz

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.

About 97 percent of all the water on Earth is in the form of ______.

• salt water
• freshwater

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

• Earth’s water supply is constant.
• Earth’s water supply is growing larger.
• 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
• pools

Fill in the blanks using the available answer choices. _________ water can harm living things.

• Polluted
• Clean

What are all the ways to conserve water? (choose all that apply)

• Keep the water running when brushing teeth.
• Turn off the water when brushing your teeth.
• Take shorter showers.
• Collect rain water.

Fill in the blanks using the available answer choices. The shape of different landforms is often changed by ______ water.

• flowing
• standing

List two ways to conserve water. Explain why it is helpful for the environment.

• Using water-efficient appliances and fixtures.
• Fixing leaks in pipes and faucets.
• Watering lawns and gardens during the hottest part of the day.
• Taking long showers and baths.

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

• climate changes
• a canyon forms
• rain falls
• high tide occurs

Identify the statement that best describes where Earth's freshwater can be found.

• Most of the freshwater is trapped in glaciers and ice caps.
• Earth's freshwater is spread out equally over ice, groundwater, and surface water.
• Most of the freshwater on Earth is found underground. The rest is stored as surface water.