Course: Bridges: To Get to the Other Side - Elementary

Bridge Building Contest Rules

1. The bridge must be built according to the bridge building code, using only materials supplied by the CardboardPastaGlue Company.

2. The bridge will be judged by the quality of the building plans (Google SketchUp), as well as the strength and the durability of the bridge.

Judging of SketchUp Design Plans will be based on
- design detail
- cost of the bridge
- how well the finished bridge matches the plans

Judging for the strength of the bridge will be tested by
- placing a bar across the middle of the bridge with a bucket suspended from the bar.
- the teacher will add weights to the bucket according to the project director's wishes.
- the last weight that the bridge holds for 30 seconds without touching the cardboard (except at the bridge foundation) is the weight recorded for the strength of the bridge.

Judging for the durability of the bridge that can withstand
seismic force will be tested by
- shaking one table leg while a baseball is rolled from one end of the bridge to the other.
- the ball must be rolled two times across the bridge.