Newton's Rocket

First when building the rocket we had to empty out a bottle of water, secondly we tapped three straws around it. Third, we filled the water bottle with vinegar and put a cork in it. Forth, we split a piece of two-ply toilet paper and then rolled it up with baking soda inside. During the building process of the rocket, my group had to redesign the rocket by adding a fourth straw to help support the body of the rocket. We also poured out some of the vinegar because it was weighing the rocket down. To have a smooth run we made the toilet paper with baking soda slimmer to fall in properly. We succeeded whereas others failed because of these three main components.