What's the Big Idea About Water

Where is most of Earth's water found?

• underground

• in Earth's oceans

• in rivers and lakes

• in polar ice caps

Which of these is a process in which water vapor (gas) changes back into liquid water?

• evaporation

• precipitation

• freezing

• condensation

Rain, snow, sleet, and hail are all examples of what?

• precipitation

• evaporation

• condensation

• groundwater

Which of the following BEST describes a way in which water moves in the water cycle?

• Water falls from the sky as rain. It stays where it falls until it evaporates.

• Water falls from the sky as snow. As the snow melts, the water runs up to the Earth's mountains.

• Water falls from the sky as rain. The water then flows downhill or seeps into the ground

• Water falls from the sky as hail. The hail is eventually buried in the ground.

About how much of all the Earth's water is found in the oceans?

• 3%

• 69%

• 97%

• 100%

How would you show water moving from the air to the land in a model of the water cycle?

• as groundwater

• by condensation

• by evaporation

• as precipitation

How could you show water moving from the land to the air in a model of the water cycle?

• as groundwater

• by evaporation

• by condensation

• by precipitation

The diagram shows the water cycle. At which point does precipitation happen?

• Point 1

• Point 2

• Point 3

• Point 4

The diagram shows the water cycle. At which point does evaporation happen?

• Point 1

• Point 2

• Point 3

• Point 4

The diagram shows the water cycle. At which point does condensation happen?

• Point 1

• Point 2

• Point 3

• Point 4