Put Pulleys to the Test

Put Pulleys to the Test

by Sally M. Walker, Roseann Feldmann
     
 

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What do flagpoles and some window blinds have in common? They use pulleys to perform work! Pulleys are simple machines. They help us to do jobs more easily. But don't take our word for it. Put pulleys to the test with the fun experiments you'll find in this book. As part of the Searchlight Books™ collection, this series sheds light on a key science

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Overview

What do flagpoles and some window blinds have in common? They use pulleys to perform work! Pulleys are simple machines. They help us to do jobs more easily. But don't take our word for it. Put pulleys to the test with the fun experiments you'll find in this book. As part of the Searchlight Books™ collection, this series sheds light on a key science question—How Do Simple Machines Work? Hands-on experiments, interesting photos, and useful diagrams will help you find the answer!

Editorial Reviews

Children's Literature - Annie Laura Smith
Machines make work easier. Those which have many moving parts such as trains and cars are known as complicated machines, and those which have few moving parts are defined as simple machines. The latter includes inclined planes, levers, pulleys, screws, wedges, and wheels and axles. The Contents page shows the scope of the information in the five chapters which address: Work, Machines, Gravity and Friction, and Kinds of Pulleys. The text and vivid photographs define the characteristics of pulleys such as flagpoles and some window blinds. Sidebars on each photograph explain a related scientific concept while hands-on experiments show these concepts. A section titled "Learn More about Simple Machines" lists relevant books and websites. The Glossary defines machinery-related terms. An Index provides easy navigation through the text. This book is part of the six-book "Searchlight Series" which address how simple machines work. Other books include Put Inclined Planes to the Test, Put Wheels and Axles to the Test, Put Levers to the Test, Put Screws to the Test, and Put Wedges to the Test. These books address the basic concepts of physics such as work, force, gravity, and friction, and will engage young readers, especially boys. Reviewer: Annie Laura Smith
Children's Literature
This entry in the "Early Bird Physics" textbook series explains what work is, defines the simple machine under discussion, introduces special terminology such as fulcrum, fixed pulley, friction, or axle, and shows variations on that machine that make it more complicated. Simple hands-on activities explore some of the properties of a pulley and illustrate ways they are configured to increase or decrease the force needed to lift objects. A multiracial cast of children who look to be about nine or ten are photographed in posed situations to illustrate concepts and most of them look realistic. Diagrams also help children see where force is applied or what can be altered to make work easier. An endnote to adults presents helpful discussion questions and ways to explore the vocabulary specific to this machine while a bibliography of other books on the topic and two generic websites suggest further exploration. A glossary and index with a note on how to help children use these sources are added as well. All in all these books present solid support for adults in introducing simple machines to elementary age children. It is an appealing package children can also read for themselves. 2002, Lerner Publications, $23.93. Ages 7 to 10. Reviewer: Susan Hepler
School Library Journal
Gr 2-4-Written in simple language and sentences, these slim titles offer straightforward explanations of how things work. Starting with the basics, the material gradually builds upon readers' growing understanding of the concepts presented. The experiments suggested can be performed with little assistance and with materials found in the home. Clear, distinct, color photos of children demonstrating the activities on each page help reinforce the concepts, as do the many drawings and diagrams. Children will find these accessible titles informative, and may see their world in a different light after reading them. The narrow focus of each title may serve a purpose for classroom units.-Susan Shaver, Hemingford Public Schools, NE Copyright 2001 Cahners Business Information.

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Product Details

ISBN-13:
9780761353225
Publisher:
Lerner Publishing Group
Publication date:
08/01/2011
Series:
How Do Simple Machines Work? Series
Pages:
40
Product dimensions:
7.10(w) x 9.00(h) x 0.30(d)
Lexile:
620L (what's this?)
Age Range:
8 - 11 Years

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