What You Need:
- A bowl of water
- Wooden matchsticks
- Liquid dish soap
- Sugar cube
Instructions:
- Put a few matchsticks in a bowl of water.
- Drop a small amount of dish soap into the center of the bowl and watch the matches shoot across the surface of the water like power boats!
- Clean out the bowl and refill it with water and the matchsticks.
- Lower the sugar cube into the bowl and watch the matches float towards it!
Why?
The soap gives off an oily film that rushes outwards and pushes the matches away, while the sugar is porous and sucks water inwards, pulling the matches towards it.
Submitted by Mark