From Cement to Bridge

Robin Nelson

thg 8 2004 · Lerner Publications

Giới thiệu về sách điện tử này

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.

Giới thiệu tác giả

Robin Nelson's careers have always kept her surrounded by books—as an elementary teacher, working at a publishing company, and now working as a school library media specialist. But her favorite job is writing books for kids. She has written many nonfiction books for children. She lives with her family in Minneapolis.