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Ships within 48 hours · Estimated delivery Jun 12 - Jun 17
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Description
Pulleys Pull Their Weight: Simple Machines for Kids -- Andi Diehn, PaperbackLearn how simple machines make work easier in these colorful nonfiction picture books all about science and engineering! What if an elephant sat on your book and refused to move. How could you lift it? Very carefully! You might want to use a pulley. A pulley is one of six simple machines that are designed to make different kinds of work such as lifting, pulling, pushing easier. In Pulleys Pull Their Weight: Simple Machines for Kids, readers solve the

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