Parents and children will have fun watching a balloon zip down a string.

Items needed:
Yarn or sting, balloons, tape, straws.


Steps
1. Cut a drinking straw in half.
2. String the straw onto a piece of yarn.
3. Tape one end of the yarn to a chair, wall or other object. Do the same with the opposite end. Be sure the yarn is a tight line.
4. Have 2 pieces of long tape ready, approximately 3-4".
5. Blow up a balloon but don't tie it. Hold the end so air doesn't escape.
6. Place the balloon under the straw and tape it to the straw.
Let go and watch the balloon zoom away!

You can see this posting and other fun science activities on Science Sunday