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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.
€44.65
Språk Engelska ● Formatera PDF ● ISBN 9781467783057 ● Utgivare Lerner Publishing Group ● Publicerad 2015 ● Nedladdningsbara 3 gånger ● Valuta EUR ● ID 5034072 ● Kopieringsskydd Adobe DRM
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