Levers and pulleys

By Emily Sohn

Subjects: Pulleys, Juvenile literature, Force and energy, Levers, Force and energy, juvenile literature

Description: "Describes different jobs that levers and pulleys can do and how they are able to do them. As readers use scientific inquiry to learn about how force, energy, and work make using these simple machines possible and effective, an activity based on real world situations challenges them to apply what they've learned in order to solve a puzzle"--