Levers

Seesaws, cranes, garden rakes, and fishing rods all have something in common. They are all levers. People use levers to help them move objects. Learn all about these simple machines and how they work in Levers, an AV² media enhanced book. This is an AV² media enhanced book. A unique book code printed on page 2 unlocks multimedia content. This book comes alive with video, audio, weblinks, slide shows, activities, hands-on experiments, and much more.