We did a rocket challenge! We had to get some 1.5l bottles and we also had a rocket launcher. We also had a bike pump so we could blow some air into the bottles we had to get a bucket full of water. We had to fill some of the bottle with water so it was not to light. We had to add just the right amount of water and air other wise the bottle would go crazy or it would not even launch and the bottle would just explode! We had 6 groups you will be able to see the psi they used and the ML they used. My group did 60 psi and 150ML I would say our one did pretty good!
