A knight needed to get into the castle but the drawbridge was broken so he could not get past the moat! He only had a few different materials with him and wanted 1B's help to find which was the most waterproof.

Luckily, this linked in with our Everyday Materials unit in science so we predicted which of his materials we thought would be the most waterproof and took to the playground to investigate!

We found that plastic was the best and tissue was the worst!