We were super scientists this afternoon. We had to work out which material would have been best to use for Eddy's raincoat. We decided we needed to test some different materials and find out which of them were waterproof. To make it a fair test, we added the same amount of water and waited for the same amount of time before checking to see if the water had gone through the material. We found that plastic and foil were waterproof but decided plastic would be the best material for a raincoat as it doesn't easily break.