At school me Lily and Alice did an experiment about making houses out of waterproof materials and before we made our houses we tested lots of things like felt, cardboard and foil. I made my house out of cardboard and the windows were made out of clingfilm the door was made of foil and a roof made out of plastic packaging. The next day we filled a watering can with water and then we poured it on top of my house and it was not waterproof because the walls were cardboard.
