However, Jack and I have done the vinegar and baking soda reaction experiment multiple times, and while he does enjoy the experiment, I wanted to introduce a new science concept to him. So I chose one that involves static electricity: Dancing Ghosts.
For Dancing Ghosts, you'll need tissue paper, at least one balloon (inflated), and scissors. Marker optional (for drawing a face on your ghost).
Cut a ghost out of the tissue paper. Then rub the balloon back and forth on your carpet or hair, creating the static electricity (as I'm sure you know), and then hold the balloon over the tissue paper ghost. The ghost should move. While the balloon still has a static charge move it back and forth and the ghost should move back and forth too. Here's my video of making the tissue paper ghost dancing:
Jack liked this science activity because he got to cut his own ghost. He really likes cutting paper right now (they're teaching him in preschool how to cut straight lines and such), and he also likes ghosts, saying "oooooo" every time he sees one. He also had his own balloon and got his ghost to dance once, but after that he just taped his ghost to the balloon and had the ghost ride around on the balloon. Haha! It was a fun and simple Halloween meets science activity. Hope everyone has a Happy Hall-oooo-ween!
If your child is a little older and interested in what static electricity is, then consider watching this video while doing the activity. It provides a great explanation to kids on static electricity.
How Static Electricity Works