What moves up and down? Why do these objects move? Children will find out in this introduction to forces and motion.
The natural world comes alive for young readers with Rookie Read-About Science! With striking, full-color photos and just the right amount of text, this series immediately involves young readers as they discover intriguing facts about the fascinating world around them.
• Simplifies complex science concepts • Clear linkage between text and photos • "Words You Know" clarify and define key concepts • Index makes navigating subject matter easy