地球上的水PDF电子书下载

Earth's Waters 14

Nature of Science:Life In a Sunless World 14

Chapter 1 Earth:The Water Planet 18

1 How Is Water Important? 20

2 Integrating Chemistry:The Properties of Water 27

3 The Water Cycle 36

Chapter 2 Fresh Water 44

1 Streams and Rivers 46

2 Ponds and Lakes 57

3 Integrating Life Science:Wetland Environments 63

4 Glaciers and Icebergs 69

5 Water Underground 72

Chapter 3 Freshwater Resources 82

1 Water to Drink 84

2 Balancing Water Needs 94

3 Freshwater Pollution 101

4 Integrating Physics:Water As an Energy Resource 109

Chapter 4 Ocean Motions 116

1 Wave Action 118

2 Integrating Space Science:Tides 126

3 Ocean Water Chemistry 131

4 Currents and Climate 138

Chapter 5 Ocean Zones 148

1 Exploring the Ocean 150

2 Integrating Life Science:Life at the Ocean's Edge 160

3 Integrating Life Science:The Neritic Zone and Open Ocean 166

4 Resources From the Ocean 173

Interdisciplinary Exploration:The Mississippi 184

Reference Section 190

Skills Handbook 190

Think Like a Scientist 190

Making Measurements 192

Conducting a Scientific Investigation 194

Thinking Critically 196

Organizing Information 198

Creating Data Tables and Graphs 200

Appendix A:Laboratory Safety 203

Glossary 206

Index 209

Acknowledgments 212

Inquiry Activities 19

CHAPTER PORJECT 19

Opportunities for long-term inquiry 19

Chapter 1:Every Drop Counts 19

Chapter 2:Build a Watershed 45

Chapter 3:A Precious Resource 83

Chapter 4:Protecting a Shoreline 117

Chapter 5:At Home in the Sea 149

DISCOVER 20

Exploration and inquiry before reading 20

Water,Water Everywhere? 20

What Are Some Properties of Water? 27

Where Does the Water Come From? 36

What Affects How Water Moves? 46

What's in Pond Water? 57

Wet or Dry? 63

How Can Ice Change the Land? 69

Where Does the Water Go? 72

How Hard Is It to Move Water? 84

Can You Reach a Balance? 94

Will the Pollution Reach Your Wells? 101

Can Water Do Work? 109

How Do Waves Change a Beach? 118

When Is High Tide? 126

Will the Eggs Sink or Float? 131

Which Is More Dense? 138

What Can You Learn Without Seeing? 150

Can Your Animal Hold On? 160

How Deep Can You See? 166

Is It From the Ocean? 173

Sharpen your Skills 24

Practice of specific science inquiry skills 24

Calculating 24

Inferring 54

Drawing Conclusions 73

Predicting 97

Classifying 103

Graphing 128

Drawing Conclusions 140

Interpreting Data 156

Inferring 170

Observing 176

TRY Tuis 29

Reinforcement of key concepts 29

Follow That String 29

Comparing Solvents 30

Tabletop Water Cycle 38

The Knuckle Divide 49

A Natural Filter 65

An Artesian Well 76

Moving Water Uphill 90

How Do Your Algae Grow? 106

Making a Water Wheel 110

Wave Motion 120

Seaweed Candy 175

Skills Lab 34

In-depth practice of inquiry skills 34

Speeding Up Evaporation 34

How Fast Does a Stream Flow? 50

Getting the Salt Out 99

Investigating Changes in Density 136

The Shape of the Ocean Floor 159

Real-World Lab 40

Everyday application of science concepts 40

Water From Trees 40

Soil Testing 74

Testing the Waters 86

Modeling Ocean Currents 142

Cleaning Up an Oil Spill 180

EXPLORING 37

Visual exploration of concepts 37

The Water Cycle 37

A River 52

A Pond 58

Drinking-Water Treatment 89

Wastewater Treatment 92

A Hydroelectric Power Plant 111

The Water Column 134

The Ocean Floor 154

Interdisciplinary Activities 88

Math Toolbox 88

Parts per 88

Calculating Density 133

Science and History 22

Water and Agriculture 22

Technology and Ocean Exploration 152

Science and Society 100

The Ogallala Aquifer 100

Shrimp Farms—At What Cost to the Environment? 179

Connection 32

Language Arts 32

Social Studies 61

Social Studies 96

Visual Arts 123

Language Arts 162