CHAPTER 1 What Is a Dam 4 CHAPTER 2 How Do We Use Dams 8 CHAPTER 3 Building Dams 18 ACTIVITIES TOOLS Try This 22 Glossary 23 Index 24 To Learn More 24
Chapter 1 What Is a Dam We cannot live without water That’s why we build dams People have been building dams for more than 4,000 years
A dam is a large structure that holds water in place It creates a secure reliable water supply The water that gathers on one side of the dam is called a reservoir reservoir