Is it easier to move heavy box with an inclined plane or wheels and axles? Readers will see how a group of kids compares two simple machines and decides which one does a better job at transporting the box. This book supports engineering design standards for primary grades in the Next Generation Science Standards.
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Langue Anglais ● Format PDF ● ISBN 9781467782951 ● Maison d’édition Lerner Publishing Group ● Publié 2015 ● Téléchargeable 3 fois ● Devise EUR ● ID 5034067 ● Protection contre la copie Adobe DRM
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