This is a great experiment from our Learning Resources Deluxe Lab Set. It was quick, it wasn’t too messy, and H thought it was completely fascinating. You’ve got all these ingredients at home already, so this is a great one for a snow day (like tomorrow), a rainy day, or just when you need a quick experiment to do with the kids.

You need:
1/2 cup of milk
Some water (maybe 1/2 cup)
A squirt of dish soap
Food coloring in a few colors

Pour half a cup of milk into a bowl.

Add a few drops of food coloring from a couple of different colors.

Make some sudsy water with tap water and a squirt of dish soap. Dip a cotton swab into the soapy water, and touch the cotton swab to the food coloring. Watch the magic!

And watch your kids be delighted.

Here’s a video of it in action: