Mighty Machines

Mighty Machines

Book - 2004
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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.
Publisher: New York : Sterling Pub., c2004.
ISBN: 9781402709005
1402709005
Branch Call Number: J 621. 811 LEV
Characteristics: 48 p. : col. ill. ; 21 cm.

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