Color-Changing Milk Experiment

Color-Changing Milk Science Experiment 🌈🌈🌈 Science experiments help us grow. Through experimenting and exploring we are able to ask questions, make assumptions, and then seek solutions. Here are some questions to ask your little ones during this experiment: What do we think will happen when we add dish soap (a surfactant) to the milk? How can we watch the surface tension “break”? You’ll need: •Shallow pan or bowl •Milk •Liquid food coloring •Q-tips •Liquid dish soap 🌈🌈🌈 Instructions 1) Pour milk into a pie pan or glass bowl until it covers the bottom. Add drops of liquid food coloring to create a colorful pattern. 2) Dip a Q-tip in dish soap and place it in the center of the dish. Watch as the food coloring moves away! 🌈🌈🌈 The science behind this experiment: Surface tension is an interesting concept— like molecules like to stick together. Milk has surface tension, just like water. Unlike water, it is high in fat and is solid colored. As the dye is less dense, it does not mix into the milk unless stirred. It remains separate. Dish soap breaks down the fat of the milk and decreases the surface tension in milk.