Kids Love Science, but be careful and don’t squirt your eye out. This young man has built his own water PVC Bazooka, but he should of put some goggles on before he shot it. This is really cool but I would try soda and Mentos. When I was a teen I built a potato gun out of PVC. I would load it with starter fluid and use one those spark lighters to set it off. My mom was really mad when she came home to find most of the bag of potatoes gone and the neighbor’s window blown out. She made my uncle take it apart and banned the making of them. It was fun though.