Which makes it easier to lift a large toy―a wedge 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 lifting the toy. This book supports engineering design standards for primary grades in the Next Generation Science Standards.
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Mari Schuh is the author of more than 300 nonfiction books for beginning readers, covering topics from tomatoes to tornadoes. She lives with her husband in her hometown of Fairmont, Minnesota.
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Book Description LIB. Condition: Brand New. 24 pages. 7.50x6.50x0.25 inches. In Stock. Seller Inventory # 1467780251