For every action there is an equal and opposite reaction.
Rockets and Balloons
What happens when you blow up a balloon and then let it go? Does the balloon move through the air?
Did you know that balloons and rockets have something in common? Rockets and balloons are both
chambers enclosing a gas under pressure. The pressurized fuel inside a balloon is air.
The pressurized fuel inside a rocket is gas produced by burning solid and/or liquid fuels.
Let's think about the balloon again. What happens when you blow the balloon up and let it go? The air moves out of
the opening in one direction, (action) while the balloon moves in the opposite direction (reaction).
The same is true of rockets. Rocket fuel ignites at the base of the rocket and the gases propel the rocket
into space, in the opposite direction.