I write the paragraph for the top four questions of introduction, and this is based on the decision between me and my partner Michelle Wei, for which I will be responsible for the top fourth and she will take the rest of the three. Besides, we collect some cardboard paper for our rocket's airfoils. I find out the relations between water bottle rocket with Newton's First and Third Laws, and how it works when it is considered as a projectile. We come up with a rocket design, just simply an empty soda bottle with 4 triangle airfoils attached at the 1/3 from its bottom. Below is the sketch of our bottle rocket.
Look more in my gallery.