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Science - building bridges

Today some of us were investigating the strength and rigidity of materials. We wanted to find the most rigid to make a bridge. We constructed the bridge supports using Lego, construction or Mobilo. We had to keep changing and adapting them to make them as strong as possible.To test them we had to get a car safely across the bridge.

We found that we needed short, wide supports, and that cardboard was the most rigid material.