In today’s science lesson, the Year 4s were able to explain in detail reasons why we should protect our ears. They discussed the damage prolonged exposure to loud noises can do to our hearing and ways in which we can reduce that exposure. Their main idea was to block out the sound, so their task was to investigate different materials to evaluate their ability to insulate against sound. After exploring the materials available, they predicted which would work best and then got to work creating their own ear defenders, filling cups with their chosen material. Each child then got the opportunity to test out each of the materials by holding them against their ears and recording how well the material blocked out the sound. The majority of the class noted that cotton wool appeared to be the best at blocking out the sound.
