Why Do Bridges Arch? Level 3 Factbook (Cambridge Young Readers)
Released: Aug 05, 2010
Publisher: Cambridge University Press
Format: Paperback, 16 pages
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Description:
A series of twenty non-fiction science readers which engages children in the world around them. What holds up skyscrapers? Why are sports domes curved? Why are triangles used in many bridges? You can find the answers to these and other questions about structures in Why Do Bridges Arch?
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