table of contents CHAPTER 1 A Hole in the Earth 4 CHAPTER 2 Inside a Cave 10 CHAPTER 3 Mammoth Cave 18 ACTIVITIES TOOLS Try This 22 Glossary 23 Index 24 To Learn More 24
chapter 1 A HOLE IN THE EARTH Have you ever been in a cave You don’t have to go underground to find one Caves are in the sides of mountains They are in glaciers They are by the sea
These landforms are all over the world Some are millions of years old A long time ago people lived in caves They painted pictures on the walls Today caves are home to bats and other animals
