Science: Building Bridges

Our second grade engineers have been busily building bridges in science. They built and tested a beam bridge, deep beam bridge, and an arch bridge to determine their relative strengths.

The girls have now been challenged to design and build a bridge which will span a 15 inch river, will carry a toy car, will allow a barge to pass underneath, and which will hold as much weight as possible. The pictures below show them hard at work on their task.