Mountains and Valleys

Overview

From the tropical islands of Hawaii to the frozen continent of Antarctica, mountains and valleys are found throughout the world. Encompassing the highest and lowest places on Earth, each mountain and valley was shaped over hundreds of millions of years by geologic forces. Some features were built by lava, while others rose along the same fault lines that cause earthquakes. Even the most famous mountains and valleys recognized today are changing slowly over time, sculpted by water, wind, and ice. Mountains and ...
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Overview

From the tropical islands of Hawaii to the frozen continent of Antarctica, mountains and valleys are found throughout the world. Encompassing the highest and lowest places on Earth, each mountain and valley was shaped over hundreds of millions of years by geologic forces. Some features were built by lava, while others rose along the same fault lines that cause earthquakes. Even the most famous mountains and valleys recognized today are changing slowly over time, sculpted by water, wind, and ice. Mountains and Valleys explains how a volcanic island is born under the sea, why Mount Everest is still growing, and what might happen when Africa's greatest valley cracks apart.
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Editorial Reviews

Children's Literature - Denise Daley
Mountains are land masses that have emerged slowly, over millions of years, as a result of forces deep inside the Earth. According to the theory of continental drift, all of the continents were once a single land mass that has evolved after many millions of years, and these masses continue to move and change. Other theories, such as that of plate tectonics, further investigate the Earth's plates in order to better understand what causes volcanoes, earthquakes, and mountain formation. This book discusses these theories and also has chapters on how land changes shape, folded mountains and volcanoes, ocean ridges and rift valleys, and fault-block mountains and their valleys. Other factors that contribute to the weathering and erosion of mountains and valleys are also discussed in detail. This informative book provides detailed information on all factors related to mountains and valleys and concludes with a chapter that explores how current technologies are being used to predict future changes. This book is part of the "The Restless Earth" series. Reviewer: Denise Daley
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Product Details

  • ISBN-13: 9780791097076
  • Publisher: Chelsea House Publishers
  • Publication date: 2/1/2009
  • Series: Restless Earth Series
  • Pages: 112
  • Sales rank: 1,401,589
  • Age range: 10 - 14 Years
  • Product dimensions: 7.10 (w) x 9.40 (h) x 0.50 (d)

Table of Contents

1 What Is a Mountain? 7

2 How the Land Changes Shape 17

3 Folded Mountains and Volcanoes 27

4 Ocean Ridges and Rift Valleys 36

5 Fault-block Mountains and Their Valleys 46

6 Weathering and Erosion 56

7 The Power of Ice 67

8 Mapping the Future 78

Glossary 85

Bibliography 95

Further Reading 104

Picture Credits 107

Index 108

About the Author 112

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