Why Do Bridges Arch? Level 3, Factbook
  • Why Do Bridges Arch? Level 3, Factbook
  • Why Do Bridges Arch? Level 3, Factbook

Why Do Bridges Arch? Level 3, Factbook

Rachel Griffiths

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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?