Straw rockets have been done over and over with hundreds of different variations, so why not one more? This version is ultra-fast and super easy, allowing you to make multiple rockets with different designs in a very short time.
I do this project with 7th and 8th grade students in one class period, having them build at least 3 different rockets with different lengths and different size, style, and number of fins. This allows them to see how different designs may work before we build larger pop-bottle rockets. There are many other possible applications, please see the last step for more ideas!
Learning Objective: By building 3 Spitball Straw Rockets, students will be able to compare how different rocket designs perform, understand how thrust and drag affect rockets, and demonstrate Newton's 3rd Law of Motion- For every action, there is an equal and opposite reaction.