Melvin and Gilda Berger Melvin and Gilda Berger SCHOLASTIC INC. New York Toronto London Auckland Sydney Mexico City New Delhi Hong Kong Buenos Aires What does your heart do? Your heart pumps blood. I ~ Fun Fact Your heart is a pump made of muscle. The blood goes out from your heart. Fun Fact Each round trip takes less than one minute. The blood goes to every part of your body. The blood flows back to your heart. Fun Fact Kids' hearts beat faster than the hearts of grown-ups. Your heart beats all day. It beats faster when you play. Your heart beats slowly when you rest. Fun Fact The beating of your heart is called your pulse. " r Your heart beats even more slowly when you sleep. .~. .>: Each pump of your heart is one heartbeat. Fun Fact The beat you feel comes from the bottom of your heart. You can feel your heartbeat. Fun Fact The hea rtbeat tells the doctor if the heart is healthy or not. A doctor can hear your heartbeat. A doctor can see your heortbeot, too. You can hear a friend's heartbeat. ISBN 0-439-77369-5 ~ 111111111111111111111111 9 780439 773690