Levers and pulleys
Subtitle: lift anything!
By: by Emily Sohn and Frederick Fellows ; chief content consultant, Edward Rock
Contributors: Fellows, Frederick
Series: iScience readers
Publisher: Norwood House Press
Published: 2011
Place of publication: Chicago, Ill
Language: eng
Number of pages: 48
ISBN-13: 9781599534268
Subjects: Levers; Force and energy; Juvenile literature; Pulleys
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"--
Notes: Includes bibliographical references and index.