Readers won’t have to disassemble their favorite toys to discover what makes them work. This book explores electric, magnetic, and motion-powered toys from design to function. It introduces readers to six simple machines and explains how they use force and motion to do work. Not every toy is a technological marvel. Readers learn about time-honored favorites including the rocking horse, Slinky, and rattles.
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Langue Anglais ● Format PDF ● ISBN 9781433392924 ● Maison d’édition Teacher Created Materials ● Publié 2009 ● Téléchargeable 3 fois ● Devise EUR ● ID 8054754 ● Protection contre la copie Adobe DRM
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