An indoor rainbow on a rainy day....a surface tension experiment

 This is an experiment perfect for a rainy day...and you have everything you need right in your cupboards.

You need:

Milk

food coloring

q-tips

dish detergent

a "deep" plate-suitable to hold milk

 Pour milk onto the plate and then add 3 drops of 3 different colors of food coloring to the center of the plate of milk.

 Dip the end of a q-tip into the detergent.

 Place the q-tip into the center of the food coloring and watch the magic.

The colors swirl and twirl and mix together creating a rainbow of colors.

And it also contains a science lesson about surface tension.