National Geographic

IX editions!

National Geographic Expeditions are referenced within the units and chapters at point of use, to support or extend chapter content.

Student Resources

Skillbuilder Handbook 940

Problem-Solving Skills

Make Comparisons 941

Analyze Information 942

Synthesize Information 943

Take Notes and Outline 944

Understand Cause and Effect 945

Read a Time Line 946

Analyze Media Sources 947

Use Graphic Organizers 948

Debate Skills 949

Math Skills

Measure in SI 950

Convert Temperature 950

Make and Use Tables 951

Make and Use Graphs 951

Reference Handbook 954

Safety in the Laboratory 954

Physiographic Map of Earth 956

Topographic Symbols 958

Weather Map Symbols 959

Periodic Table of the Elements 960

Relative Humidity 961

Minerals 962

Rocks 964

Solar System Charts 965

Glossary/Glosario 966

Index 1004

Credits 1027

flflCUmq nl Lsb Start off each chapter with a hands-on introduction to the subject matter.


1 Why is precise communication important? 5

2 Can you make an accurate map? 29

3 What do fortified cereals contain? 59

4 What shapes do minerals form? 85

5 How are minerals identified? 111

6 What happened here? 133

7 How does change relate to surface area? 163

8 How does water affect sediments on slopes? 193

9 How does water infiltrate? 223

10 How is water stored underground? 251

11 What causes cloud formation? 281

Chapter 12 1B

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