Pulleys

Pulleys

by Kay Manolis
     
 

Editorial Reviews

Children's Literature - Carrie Hane Hung
Raising a flag on a pole or hoisting a sail on a boat are jobs that utilize the help of a simple machine, a pulley. Find out how this simple machine helps move loads to get work done with less effort. There are diagrams illustrating not only how pulleys work but the different types of pulleys. The illustrations clearly show the differences between the fixed, movable, and compound pulleys. The color photographs display how people use the different pulleys for work and recreation. Also, there is an example of how a pulley is a part of a complex machine. The chapters are short in terms of pages; however, there is sufficient text and content to explain the subject. Bold print words in the main text are described in the glossary. Teachers using this book as part of a study unit will want to provide hands on activities for students to support their understandings of the concepts and principles of the pulley. This book is part of the "Blastoff! Readers: Simple Machines" series which also features levers, ramps, screws, wedges, and wheels and axles. The text is rated as level 4 which indicates more text on the page, variety of sentence structures, and more content vocabulary. Reviewer: Carrie Hane Hung

Product Details

ISBN-13:
9781600143243
Publisher:
Bellwether Media
Publication date:
08/01/2009
Pages:
24
Product dimensions:
6.70(w) x 9.10(h) x 0.30(d)
Age Range:
5 - 9 Years

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