Is it easier to lift a bag full of toys with an inclined plane or a pulley? Readers will see how a group of kids compares two simple machines and decides which one does a better job at lifting the bag. This book supports engineering design standards for primary grades in the Next Generation Science Standards.
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Lingua Inglese ● Formato PDF ● ISBN 9781467782999 ● Casa editrice Lerner Publishing Group ● Pubblicato 2015 ● Scaricabile 3 volte ● Moneta EUR ● ID 5034069 ● Protezione dalla copia Adobe DRM
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