We made our way to the amphitheater where we talked about the safety of conducting science experiments. We all needed to remain in our seats so that we would be clear of any falling rockets. The children were very understanding and cooperative. Everyone had several opportunities to launch their rocket and enjoyed it so much we sent one home with everyone to try with their families.
Simply fill the film canister about half way full of warm water and drop in a half tablet of Alka-Seltzer. Snap on the cap. Place it on the ground cap side down and step back. In a few moments the rocket will take flight.