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What Do You Know About Simple Machines?
20 Questions: Physical Science
Simple machines make all of our lives easier on a daily basis. In this informative book, young readers will be introduced to many uses of the lever, pulley, inclined plane, wheel and axle, screw, and wedge.
* Reviews *
Series Review: 20 Questions: Physical ScienceUsing a format of twenty questions, students will learn about different physical science topics. The information is well presented with pictures and captions on all pages...the books could be used to supplement any collection in the area of physical science.Library Media ConnectionRL
Grades
2-3 IL
Grades
2-4 
