Milk Art: Chemistry in Action

In this video, your child will explore a simple chemical reaction using milk and soap. When the soap touches the surface of the milk, it begins to separate the fats in the milk from the water, trapping the fat in a soapy membrane. The chemical reaction causes the food coloring to swirl and move, creating a creative chemistry masterpiece.

Let’s Begin!

Materials:

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Directions:

  • Have your child explore the materials. What do they observe about the milk? Help them record their observations on the milk art worksheet.

  • Help your child place drops of food coloring throughout the milk.

  • Dip one end of a cotton swab into the dish soap

  • Touch the soapy end of the swab to the milk and observe what happens. Record your observations on the worksheet.

  • Time and record how long it takes for the milk to stop reacting to the soap.

  • Repeat this experiment with 2% and skim milk, or other types of milk such as almond, coconut, and oat.

©STEMSpark LLC 2020