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Do it Yourself
Simple Machines: Forces in Action
Buffy Silverman looks at the core curriculum science topic of machinary through the lens of a 'Do-It-Yourself' guide.
48 pages, Paperback
First published January 1, 2009
2 people want to read
About the author
Buffy Silverman
167 books23 followersAuthor of nonfiction and poetry for young readers. Nature lover with a camera on hand.
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