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.
Lingua Inglese ● Formato PDF ● ISBN 9781467783057 ● Casa editrice Lerner Publishing Group ● Pubblicato 2015 ● Scaricabile 3 volte ● Moneta EUR ● ID 5034072 ● Protezione dalla copia Adobe DRM
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