During the afternoon of our own D2BD STEM day, we worked in our groups to build rubber band cars. We used cardboard boxes, wheels, rubber bands, wooden rods and paper clips to make them. We designed the outside and added special stickers that Williams had brought in for us. We tried to remember some of what we had learnt from the STEM activities in the morning. We only had an hour to make them and then we went into the hall to test them out. Jack and Jamie helped us to make some improvements and we tested them again-they all went a bit further!