From Cement to Bridge


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How is a bridge built? Cement is mixed with water and rocks to make concrete. The concrete is poured into holes and into blocks that are stacked to make a bridge. Once fences and lights are added to the bridge, cars can drive across it.

Censor Level:
Format: Default Title
Guided Reading Level: L
Series: Start to Finish
ISBN-13: 9781575058115
Sub Genre:

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