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CHAPTER OUTLINE

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The Water Planet

CHAPTER

Water moves through Earth’s atmosphere, oceans, and land in a cycle.

Water continually cycles.

Fresh water flows and freezes on Earth.

Fresh water flows underground.

8.18.1

8.28.2

8.38.3

CHAPTER RESOURCES

VOCABULARY

KEY CONCEPT CHAPTER HOME

salt water

water cycle

fresh water

Water continually cycles.

SECTION OUTLINESECTION OUTLINE

evaporation

Water moves through Earth’s environment in a continuous cycle.

1

23

Evaporation Water rises as vapor.

1

Condensation Vapor changes into liquid.

2

Precipitation Water falls to the surface.

3

condensation

precipitation

8.18.1

CHAPTERRESOURCESCHAPTERRESOURCES

VOCABULARY

KEY CONCEPT CHAPTER HOME

salt water

water cycle

fresh water

Water continually cycles.

SECTION OUTLINESECTION OUTLINE

evaporation

Water moves through Earth’s environment in a continuous cycle.

condensation

precipitation

8.18.1

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VISUALIZATION

See how water moves through Earth’s system in the water cycle.

CHAPTERRESOURCESCHAPTERRESOURCES

VOCABULARY

KEY CONCEPT CHAPTER HOME

drainage basin

turnover

divide

Fresh water flows and freezes on Earth.

SECTIONOUTLINESECTIONOUTLINE

eutrophication

iceberg

Water on land collects and flows in rivers and lakes. Much of Earth’s fresh water is frozen.

Lake

River

8.28.2

CHAPTERRESOURCESCHAPTERRESOURCES

VOCABULARY

KEY CONCEPT CHAPTER HOME

Fresh water flows underground.

groundwater

SECTIONOUTLINESECTIONOUTLINE

permeable

impermeable

water table

aquifer

spring

Water collects and moves beneath the land surface.

Gravity pulls water down through permeable materials until it reaches an impermeable layer.

The impermeable layer prevents water from sinking farther down.

Water collects in open spaces in soil, gravel,or rock.

artesian well

8.38.3

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SIMULATION

Explore how groundwater fills in aquifers.

CHAPTERRESOURCESCHAPTERRESOURCES

VOCABULARY

KEY CONCEPT CHAPTER HOME

I. Water continually cycles.

A. Water is a unique substance.

C. Water moves in a worldwide cycle.

1. The Water Cycle

2. The Impact of the Water Cycle

KEY CONCEPTSUMMARYKEY CONCEPTSUMMARY

1. Water and Life

2. Fresh Water and Salt Water

Water continually cycles.

salt water

water cycle

fresh water

evaporation

condensation

precipitation

B. Water covers most of Earth.

8.18.1

CHAPTERRESOURCESCHAPTERRESOURCES

VOCABULARY

KEY CONCEPT CHAPTER HOME

II. Fresh water flows and freezes on Earth.

KEY CONCEPTSUMMARYKEY CONCEPTSUMMARY

A. Water flows and collects on Earth’s surface.

1. Ice on Land

2. Icebergs

1. Lake Turnover

Fresh water flows and freezes on Earth.

C. Most fresh water on Earth is frozen.

2. Eutrophication

drainage basin

turnover

divide

eutrophication

iceberg

B. Surface water collects in ponds and lakes.

8.28.2

CHAPTERRESOURCESCHAPTERRESOURCES

VOCABULARY

KEY CONCEPT CHAPTER HOME

III. Fresh water flows underground.

A. Water fills underground spaces.

B. Underground water can be brought to the surface.

KEY CONCEPTSUMMARYKEY CONCEPTSUMMARY

Fresh water flows underground.

1. Aquifers

2. The Importance of Aquifers

1. Springs and Wells

2. Hot Springs

groundwater

permeable

impermeable

water table

aquifer

spring

artesian well

8.38.3

CHAPTERRESOURCESCHAPTERRESOURCES

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