This website gives multiple links to various information about water-bottle rockets. It gives a background of bottle rockets, the physics behind it, and how to make various different types of bottle rockets, as well on tips on how to make them. Thereʻs also a performance calculator to with a simulator that can calculate your launch as well as some other helpful extra links to making an awesome bottle rocket. I chose this link because it had everything about bottle rockets and more that would be very useful for when we had to build one because it gave tons of great outside information that we could utilize.
Source: http://spaceplace.jpl.nasa.gov/en/kids/rocket.shtml
