This experiment is colorful, fun, and easy to do at home!
What you need:
* A shallow dish or plate
* Milk (whole milk works best)
* Dish soap
* Cotton swabs
* Food coloring (several colors)
Instructions:
1. Pour a thin layer of milk into the dish.
2. Add a few drops of different food coloring to the milk, spacing them out. Don't stir!
3. Dip a cotton swab into dish soap and then touch the tip to the center of the milk.
4. Watch the colors swirl and dance!
Explanation:
Milk contains fat molecules. The soap breaks down these fat molecules, causing them to move around quickly. The food coloring helps you see the movement.
Extra fun:
* Try different types of milk (skim, 2%, etc.) and see how the results change.
* Add a drop of water to the milk before the soap. What happens?
* Add different amounts of soap to see how it changes the speed of the reaction.
This experiment teaches about surface tension, chemical reactions, and color mixing, all in a fun and engaging way!
