Today we were scientists! We worked in teams to find out which toothpaste cleans the fastest. Tiles acted as our teeth and permanent marker was the plaque. In our teams, we had to find out which toothpaste cleaned the marker off the tile in the fastest time. It was really important that the test was fair, so we all had different jobs to do so that our team completed the fair test successfully and had a set of results to talk to the rest of the class about.