Just recently I bought the Cosmic rocket.It was a mistake.The tube that contained the baking soda and vinegar was so tight that the rocket could not build up enough pressure to take off.It had a good system for launching but it was so tight that only if you put it on lightly could it take off.After I returned it I began to think.I wondered if I could rig up a release like that.I found that 1/2 PVC fit perfectly in the neck of a 1 liter bottle.So this ible was born.I am entering in the epilog contest because it is using a bottle that would other wise be thrown out.I have entered it in a contest so please rate or vote.
Step 1: Materials
The materials... 1/2 PVC,at least on inch.In the picture I used to much. wood.Foam would work better but wood is what I had. 1 liter bottle. hot glue gun.(any kind of glue will do) baking soda vinegar. Thats it!