Earth's Water

What is the role of the Sun in the water cycle?

• Solar power causes water to move within Earth's atmosphere.

• Solar power causes groundwater to accumulate.

• Solar power causes Earth's water to heat and prevents freezing.

• Solar power causes the production of oxygen for plants and animals.

Which process of the water cycle describes water changing from liquid to a gas?

• Condensation

• Precipitation

• Evaporation

• Conservation

The author includes headings in bold print to...

• explain why the water cycle is important

• describe how people can protect and conserve water

• identify the information in each section

• show which words are most important in the selection

What sentence best summarizes the information from paragraphs 6 and 7 of the selection?

• Pollution of groundwater will result in the ocean being contaminated.

• People can improve the quality of water through conservation.

• The survival of plants and animals is determined by the amount of rainfall on Earth.

• Conservation and protection of water is important to Earth's environment.

What is the best caption for the photograph next to paragraph 6 of the selection?

• Conservation Efforts

• A Polluted Stream

• Keeping Oceans Clean

• The Importance of Recycling

What process occurs when an abundance of water is stored in clouds?

• Precipitation

• Conservation

• Evaporation

• Collection

Why does watering yards in early morning and late evening limit evaporation?

• Rays of the Sun are blocked by clouds.

• Heat from the Sun is increased.

• Precipitation from the clouds is released.

• Heat from the Sun is decreased.

The diagram helps the reader --

• comprehend the importance of Earth's water

• identify the types of plants needed in the water cycle

• recognize the steps of a science investigation to understand the water cycle

• understand the continuous movement of Earth's water

What is the relationship between pollution and groundwater?

• Groundwater remains on the surface of Earth.

• Pollution causes the natural filtering to be unsuccessful.

• Groundwater evaporates more quickly.

• Pollution allows water to collect in the soil.

What is the meaning of the suffix -ation as used in the word evaporation in paragraph 5?

• equal to

• process of

• one who

• result of