Eighth graders participate in several game like activities. The first, Planetary Orbit Race," involves two students holding a 12 meter rope. One member remains in their spot while the other races around in a circle. The rope represents gravity, the runner is a planet. The second activity, "Comet Time Trials," simulates a comets' orbit about the sun, and the third, "Weightless Ball," they simulate anti-gravity by keeping a beach ball aloft.