Gears (Toybox Science)
Type
Book
Authors
ISBN 10
0713633549
ISBN 13
9780713633542
Category
Unknown
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Publication Year
1991
Publisher
Pages
32
Description
Explains what gears are used for and why some gears work better than others. There is a blueprint at the end of the book to build a model helicopter. This book is part of a series which uses toys to educate children about science. - from Amzon
Number of Copies
1
