The children examine the materials that are available to them for the workshop. They have straws, wooden blocks, string, newspaper and card. Tape can be used to join materials together and they have a pair of scissors.
As with the materials above, they decide which are strong when they are: Pulled, pushed, bent, twisted.
This time, they can actually test the materials, just as a engineer would do.
The challenge is to make a bridge that will span a gap of at least one metre between two low tables while leaving room for ships to pass underneath. The bridge roadway must be wide enough for a model truck to cross. The truck can be loaded with extra weights to test the strength of the bridge