Rocket Blast Balloon
- Yarn or string
- 2 – Chairs
- Use the scissors and cut the straw into about a two inch long piece.
- Cut a length of yarn about six feet or more long.
- Tie one end of the string to one chair.
- Slide the piece of straw onto the yarn.
- Now tie the other end the yarn to the other chair.
- Blow up the balloon. Pinch the end of the balloon closed but do not tie it off.
- Tape the balloon to the straw.
- Pull the straw and balloon to one end of the yarn.
- Release the balloon and watch your Rocket Blast Balloon take off.
How it Works:
Our Rocket Blast Balloon demonstrates Newton’s Third Law of Motion: for every action there is an equal and opposite reaction. When we release the balloon, the pressurized air in the balloon pushes against the air around the balloon sending it in the opposite direction down the yarn.
Make This A Science Project:
How do different sized balloons perform? Does the length of the yarn cause any changes in the Rocket Blast Balloon behavior? Do different shaped balloon perform differently?