7. Chase it down and giggle with delight. :)
1. Cut a 4 inch piece of straw and a 4 foot piece of fishing line.
2. Put the straw on the line.
3. Tie the fishing line (plenty of that around here...) to two chairs, pulling it tight.4. Blow up a balloon, but don't tie it closed. Just twist it slightly.
5. Using masking tape, tape the balloon to the straw.
6. Let go!!
This experiment demonstrates Newton's Third Law of Motion because the air blows one direction, and the balloon goes the other.