Let's make magic, exploding fairy milk. What do you think will happen when you mix milk, food coloring, and a drop of liquid soap? Let's find out.
What You Need
- Cotton swabs
- Dish washing soap (such as Dawn or Joy)
- Food coloring
- Milk (whole or 2% works best)
- Dinner plate
What You Do
- Pour enough milk onto a dinner plate to cover the bottom and allow it to settle.
- Add one drop of each of the four colors of food coloring to the milk. Keep the drops close together in the center of the plate.
- What do you think will happen when you touch the tip of the cotton swab to the center of the milk? Try it. Don't stir, just tap.
- Now, place a drop of liquid soap (like Dawn) on the tip of the cotton swab.
- Place the soapy end of the swap in the middle of the milk and hold it there for 10-15 seconds. Notice the burst of cool.
The Science: What happened when we added the soap to the milk? What happens when you try different milk or different soap? When you add soap to milk, the weak chemical bonds that hold the proteins in the solution are altered. The molecules of protein and fat bend, roll and twist in every direction.
Use the following resources to learn more:
Watch Steve Spangler's Video.
This experiment was adapted from the Centaurs, Trolls, & Fairies: Aggie Adventures for Kids Program which used the Steve Spangler Science experiment.