Time To Make Rockets Boom

In Te Ngahere we have been launching our rockets. Yesterday on Wednesday Troy and Gustavo came in so that we could launch all of the groups rockets. Some of the groups rockets were still getting modified so they did not launch them. The group that got their rocket the longest got a big chocolate bar and the second and third got a little chocolate bar or a lollipop. The group that came first their rocket went 69.4 meters, and the second place rocket went 28.8 meters third place rocket went 22.4 meters. Have you created a bottle rocket before?