Spreading Colors

1. Add a layer (a centimeter thick or even less is enough) of milk on a plate/pan. This doesn't work as well with skim milk, the higher the fat content in the milk the better.
2. Add a couple of drops of diferent food colors apart from each other -- hence, close to the sides than the center of the plate. The food color drops will not mix in the milk.
3. Dip a Q-tip in soap and place it in the middle of the plate.
4. You might need to wait for 15-20 seconds. All of a sudden, colors will start moving around. You should see swirls of colors. After seeing this for a while, you can move the q-tip around, even moving it to close to where the color drops were initially placed.