Earth's Waters

Nature of Science:Life In a Sunless World

Chapter 1 Earth:The Water Planet

1 How Is Water Important?

2 Integrating Chemistry:The Properties of Water

3 The Water Cycle

Chapter 2 Fresh Water

1 Streams and Rivers

2 Ponds and Lakes

3 Integrating Life Science:Wetland Environments

4 Glaciers and Icebergs

5 Water Underground

Chapter 3 Freshwater Resources

1 Water to Drink

2 Balancing Water Needs

3 Freshwater Pollution

4 Integrating Physics:Water As an Energy Resource

Chapter 4 Ocean Motions

1 Wave Action

2 Integrating Space Science:Tides

3 Ocean Water Chemistry

4 Currents and Climate

Chapter 5 Ocean Zones

1 Exploring the Ocean

2 Integrating Life Science:Life at the Ocean's Edge

3 Integrating Life Science:The Neritic Zone and Open Ocean

4 Resources From the Ocean

Interdisciplinary Exploration:The Mississippi

Reference Section

Skills Handbook

Think Like a Scientist

Making Measurements

Conducting a Scientific Investigation

Thinking Critically

Organizing Information

Creating Data Tables and Graphs

Appendix A:Laboratory Safety

Glossary

Index

Acknowledgments

Inquiry Activities

CHAPTER PORJECT

Opportunities for long-term inquiry

Chapter 1:Every Drop Counts

Chapter 2:Build a Watershed

Chapter 3:A Precious Resource

Chapter 4:Protecting a Shoreline

Chapter 5:At Home in the Sea

DISCOVER

Exploration and inquiry before reading

Water,Water Everywhere?

What Are Some Properties of Water?

Where Does the Water Come From?

What Affects How Water Moves?

What's in Pond Water?

Wet or Dry?

How Can Ice Change the Land?

Where Does the Water Go?

How Hard Is It to Move Water?

Can You Reach a Balance?

Will the Pollution Reach Your Wells?

Can Water Do Work?

How Do Waves Change a Beach?

When Is High Tide?

Will the Eggs Sink or Float?

Which Is More Dense?

What Can You Learn Without Seeing?

Can Your Animal Hold On?

How Deep Can You See?

Is It From the Ocean?

Sharpen your Skills

Practice of specific science inquiry skills

Calculating

Inferring

Drawing Conclusions

Predicting

Classifying

Graphing

Drawing Conclusions

Interpreting Data

Inferring

Observing

TRY Tuis

Reinforcement of key concepts

Follow That String

Comparing Solvents

Tabletop Water Cycle

The Knuckle Divide

A Natural Filter

An Artesian Well

Moving Water Uphill

How Do Your Algae Grow?

Making a Water Wheel

Wave Motion

Seaweed Candy

Skills Lab

In-depth practice of inquiry skills

Speeding Up Evaporation

How Fast Does a Stream Flow?

Getting the Salt Out

Investigating Changes in Density

The Shape of the Ocean Floor

Real-World Lab

Everyday application of science concepts

Water From Trees

Soil Testing

Testing the Waters

Modeling Ocean Currents

Cleaning Up an Oil Spill

EXPLORING

Visual exploration of concepts

The Water Cycle

A River

A Pond

Drinking-Water Treatment

Wastewater Treatment

A Hydroelectric Power Plant

The Water Column

The Ocean Floor

Interdisciplinary Activities

Math Toolbox

Parts per

Calculating Density

Science and History

Water and Agriculture

Technology and Ocean Exploration

Science and Society

The Ogallala Aquifer

Shrimp Farms—At What Cost to the Environment?

Connection

Language Arts

Social Studies

Social Studies

Visual Arts

Language Arts