Baking sheet or dish with flat bottom
Food coloring
Milk
Dish detergent
Directions
Add milk to
the baking sheet/dish until bottom is covered
Add drops of food coloring in the center of the milk
Add a couple of drops of dish detergent to the glob of
food coloring.
Watch the colors explode!
What's Going On?
The dish
detergent contains hydrophobic
molecules,
or
more simply molecules that hate water. When the
detergent comes in contact with the water in the milk, it
quickly spreads out over the milk surface carrying the food
coloring with it, so that the "water hating" part of the
molecules can reach the air.
