CHAPTER 1 Lift 4 CHAPTER 2 Precession 12 CHAPTER 3 Balanced Forces 18 ACTIVITIES TOOLS Try This 22 Glossary 23 Index 24 To Learn More 24 CHAPTER 1 LIFT Have you ever seen a boomerang thrown and then return to its sender It kind of seems like magic But it's not It's physics 4 CHAPTER 1 Physics is the science of matter and how it moves Like all sciences there are physics laws by which all things work Even boomerangs 5 CHAPTER 1 
