What keeps you standing tall? Your bones! But they do more than just stop you from flopping on the floor. Your bones make up the frame of your body and support you. They protect your other organs and team up with muscles and joints to help you move. And while they're doing all this, they are living and growing, too! Explore what's inside you with fun text, bright pictures, and lively illustrations. Glossary of key words Index Table of contents Our bodies are super machines that keep us moving, learning, and having fun. But how do they work? The secret is inside! Explore different body systems, what they do for us, and how to keep them healthy. Each book pairs colorful illustrations and photographs with engaging text and fun facts

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