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Mari Schuh
Holding a Door Open [PDF ebook]
Wedge vs. Wheels and Axles

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Обложка Mari Schuh: Holding a Door Open (PDF)

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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язык английский ● Формат PDF ● ISBN 9781467783033 ● издатель Lerner Publishing Group ● опубликованный 2015 ● Загружаемые 3 раз ● валюта EUR ● Код товара 5034071 ● Защита от копирования Adobe DRM

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