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Mighty Machines
ISBN: 9781402709005
Author: Levine, Shar/ Johnstone, Leslie/ Harpster, Steve
Publisher: Sterling Pub Co Inc
Published: March 2004
Retail: $12.95    OUR PRICE: $2.99
     You Save 77%
Binding Type: Hardcover
Annotation: How do machines work? Kids will have a blast constructing a mini-seesaw to illustrate the way a lever operates or creating their very own pulley from an empty spool, string, ribbon, pails, pennies, a broom, and two chairs. They'll find out why they can't put in a screw using only their fingers and examine the different parts of compound machines. In another experiment, a child's bicycle becomes a laboratory for understanding whether wheels have to be smooth to run. A good time will be had by all.

Additional Information
Target Grade: 2-3
Grade level: 2-3
Physical Information: 0.50" H x 50.00" L x 8.25" W
Bargain Category: Early Elementary, Picture Books, Reference, Science
Grade level(s): 2nd, 3rd, 4th
Descriptions, Reviews, Etc.
Reviewed by Horn Book Guide Reviews (Horn Book Guide Reviews 2005 Spring)
As stimuli for interest in nature and technology, these books succeed. As science experiments, they often fall short, with some difficult instructions, incomplete experiments, and needless complications--though on the whole [cf2]Machines[cf1] is better than [cf2]Nature[cf1]. Cartoon illustrations are generally helpful, and occasional sidebars add details. Glos., ind. [Review covers these titles: [cf2]First Science Experiments: Mighty Machines[cf1] and [cf2]First Science Experiments: Nifty Nature[cf1].] Copyright 2005 Horn Book Guide Reviews.
Reviewed by School Library Journal Reviews (SLJ Reviews 2004 September)
Gr 3-5-After a note to adults that includes safety precautions, this book states the basic principles of physics that explain why simple machines work. Readers are then directed to create a scale, similar to a fishing scale, from a wooden ruler, rubber band, paper clip, and small bag of rice. This device is used to measure effort in many of the following demonstrations of the work done by simple machines. Short chapters present brief introductions to and experiments about levers, pulleys, wheels and axles, inclined planes, wedges, and screws. All of the projects use inexpensive and easily accessible materials. Unfortunately, the writing tends to be dry and is occasionally confusing. The cartoon artwork, which features determined-looking, goggle-eyed children, is more decorative than helpful. The book covers a lot of ground, and some clarity is lost because the illustrations are not detailed enough. Patricia Armentrout's "Simple Devices" series (Rourke, 1997; o.p.) and Salvatore Tocci's Experiments with Simple Machines (Children's, 2003) present similar material more effectively.-Kathryn Kosiorek, Cuyahoga County Public Library, Brooklyn, OH Copyright 2004 Reed Business Information.