The picture above is the design of our rocket. Me and my group, Deandre and Marcus, decided to three triangle fins on a bottle because it would've given us the most effective air time. We tried to space these apart evenly, so the rocket doesn't go lopsided. We added pop sickle sticks so the rocket was sturdy and added tin foil to the top so it would go through the air with less resistance.
Once we made our rocket we put water into the bottle and put it on a launcher, shown in the video above. Our group's rocket went 340 degrees into the sky. Although we did all of this to our rocket, our rocket didn't go far. Maybe because it was a little uneven and too heavy.