A balloon A straw A piece of string 3 to 5 meters long that passes easily ... This jet of air functions like jet force and propels the balloon forwards. Rocket engines function according to the exact ...

One of the simplest and most popular rocket propulsion activities is to make balloon rockets. All you need are some balloons, string, tape, and straws. Inflate a balloon and tape a straw to it.

A balloon is taped to a straw. The straw is free to move along ... The movement of the balloon along the thread is similar to the motion of a rocket at lift off. At lift-off, hot burning gas ...