Which works better to haul a pumpkin-a lever 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 moving the pumpkin. This book supports engineering design standards for primary grades in the Next Generation Science Standards.
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Language English ● Format PDF ● ISBN 9781467783057 ● Publisher Lerner Publishing Group ● Published 2015 ● Downloadable 3 times ● Currency EUR ● ID 5034072 ● Copy protection Adobe DRM
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