Vocabulary
From the Captions
Fill in the Blanks
Content Questions
100

made dirty or harmful

polluted

100

_____ can be carved into many shapes.

ice

100
Most of the Earth is covered with _____.

Water

100

Water that is in the air and is invisible

a gas

200

having a firm or hard form or shape

solid

200

What were the dark parts in the picture of Earth on page 4?

water

200

Solid water is called _____.

ice

200

What is the process called when liquid water changes into a gas?

evaporation

300

matter that is able to flow and change shape while keeping its size

liquid

300

Ho much water was in each of the containers on page 7?

4 cups

300

_____ water takes the shape of the container it is in.

liquid

300

Where do we find most of the Earth's water?

North and South Poles

400

matter that can freely change shape and size; often it cannot be seen

gas

400

What covers the Earth's South Pole?

sheets of ice

400

_____ water makes people, plants, and animals sick.

Polluted

400

What are clouds made of?

tiny droplets of water

500

the change of water from a liquid to a gas as a result of getting warmer

evaporation

500

Energy from the sun causes water to _____.

evaporate

500

When invisible water in the air gets cold, it can make _____.

clouds

500

What happens when water drops in clouds get big and fat?

rain