How can pulling down make something go up? How do carnival rides work? What makes the hands on a watch go around? How does pedaling a bicycle make it move? This title shows you how different kinds of these two simple machines are all around you to make your work and play easier.
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How can pulling down make something go up? How do carnival rides work? What makes the hands on a watch go around? How does pedaling a bicycle make it move? This title shows you how different kinds of these two simple machines are all around you to make your work and play easier.
Read Less
Add this copy of Pulleys and Gears to cart. $21.59, good condition, Sold by ThriftBooks-Reno rated 5.0 out of 5 stars, ships from Reno, NV, UNITED STATES, published 2006 by Heinemann Educational Books.
Add this copy of Pulleys and Gears to cart. $21.59, very good condition, Sold by ThriftBooks-Dallas rated 4.0 out of 5 stars, ships from Dallas, TX, UNITED STATES, published 2006 by Heinemann Educational Books.
Add this copy of Pulleys and Gears to cart. $21.59, fair condition, Sold by ThriftBooks-Baltimore rated 4.0 out of 5 stars, ships from Halethorpe, MD, UNITED STATES, published 2006 by Heinemann Educational Books.