Del cemento al puente (From Cement to Bridge)

By Robin Nelson

Subjects: Nonfiction, Bridges, juvenile literature, Building, juvenile literature, Juvenile Nonfiction, Building, Education, Bridges

Description: 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.