Rockets work by way of jet propulsion. The principle behind it is based on Newton's Third Law of Motion: For every action there is an equal and opposite reaction. When a rocket blows out gas at high speed, the rocket is pushed in the opposite direction. Balloon rockets follow the same principles, but in this case the gas is the air inside the balloon. In this project you'll build balloon rocket. Then you can design a technological improvement, or discover a new practical application for balloon rockets.
How do you make a rocket out of a balloon?
Warning is hereby given that not all Project Ideas are appropriate for all individuals or in all circumstances. Implementation of any Science Project Idea should be undertaken only in appropriate settings and with appropriate parental or other supervision. Reading and following the safety precautions of all materials used in a project is the sole responsibility of each individual. For further information, consult your state's handbook of Science Safety.