our current topic in class has been forces and one of the topic based activities has been making parachutes. So with our pot of modeling clay we had to make a ball and he make different sizes of parachutes out of tissue paper. The objective was to throw the ball off of the hill and the parachutes would try to slow it down. My group made a 10cm, 20cm, 30cm and 40cm parachute. They worked but most of the time the parachute would come out of the modeling clay and fly away, but I think this test was successful.