Tie Dyed Milk:
Using just a few things in your house, you can make your own tie dyed milk! You’ll create some beautiful, colorful patterns that swirl around in your plate.
All you need for the tie dyed milk activity are:
- A plate
- Food coloring
- One Q-tip
- Liquid Dish Soap
How does it work?
The dish soap that you put on the q-tip does not mix with the milk. Instead it floats on top and spreads over the surface. As it spreads, it attracts the food colouring. Dish soap is a “degreaser” so the molecules in it are attacking the fat in the milk, causing motion which creates the swirling of the colors. When two colors meet, they mix to create the beautiful colorful patterns you see.
Since the dish soap attracts to the fat in the milk, try this experiment again but use the fat in the milk as a variable. Try it with non-fat milk, 2% milk, and then whole milk. How does the fat content affect the swirling patterns. Do the colors swirl with more fat in the milk or less? Post your results in the comments below!