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The Iguazu Falls borders three South American countries: Brazil, Paraguay, and Argentina. It spans 1.7 miles (2.7 km) in width and features 275 individual waterfalls. This video shows The Devil’s Throat. It is the u-shaped cliff that marks the border between Brazil and Argentina. It is more than 260 ft (80 m) high.

Water is important for human health. In fact, the human body is made mostly of water. Water helps digest food. It also carries nutrients throughout the body. Water leaves the body through sweat, urine, and tears. Humans must drink water to replace it. If they do not get enough water, people can become very sick.

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Making Connections


When do you use water at home or at school? Are there ways you could use less water?


Have you read other books about water? What new facts did you learn in this book?


Humans, animals, and plants all need water to live. What other things do people need water to do?

Teacher Resources

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