Colorful Family Science for St. Patrick's Day

What causes the food coloring to move through the milk?

In this week's spotlight: a family science experiment that lets you and your children make a rainbow in keeping with St. Patrick's Day! What happens when you put drops of food coloring in milk? What happens when you add a bit of dishwashing liquid? Put it to the test in this science activity for a fun, colorful look at the role of a surfactant and how it changes the surface tension of a liquid.

Family science activity:

• Make a Milk Rainbow

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