Raising a Bag of Toys
ebook ∣ Pulley vs. Inclined Plane · First Step Nonfiction — Simple Machines to the Rescue
By Mari Schuh
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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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