Wind-ups (Toybox Science) - Softcover

 
9780713652314: Wind-ups (Toybox Science)

Synopsis

How do springs and wind-ups store energy? In this book children find out by experimentation and use the blueprint at the end of the book to build their own model.

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9780713633573: Wind-ups (Toybox Science)

Featured Edition

ISBN 10:  0713633573 ISBN 13:  9780713633573
Publisher: A & C Black (Childrens books), 1991
Softcover