TABLE OF CONTENTS CHAPTER 1 Many Muscles 4 CHAPTER 2 Move Your Muscles 10 CHAPTER 3 Don’t Think 16 ACTIVITIES TOOLS Try This 22 Glossary 23 Index 24 To Learn More 24
CHAPTER 1 MANY MUSCLES 4 CHAPTER 1 You sit on a swing You push off and straighten your legs Then you bend them at your knees You pump them up and down Soon you’re going higher and higher Whee
CHAPTER 1 5 You need muscles to move your legs and swing You need them to run and to ride a scooter Your body moves and your heart beats because of your muscular system
