Kate's Corner: Chromatography valentines

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BRIDGEPORT, W. Va. (WDTV) - We are making more valentines in this Kate's Corner but this time we are learning about chromatography.

Here's what you'll need: coffee filters, washable markers, a permanent marker, a dropper, water, and paper towels.

First you'll cut at least two hearts out of your coffee filter. Then create a design all over your hearts. On one of the heart, write a message in a washable marker and in the permanent marker on the other.

Place your hearts on two separate paper towels. Take your dropper and drop water on the hearts (but not too much water.)

You'll notice the word written in the washable marker starts to run with the other colors. The permanent marker word though stays intact.

Why is that?

Well, the colors run due to chromatography. Chromatography is the separation of a mixture by passing it in solution or suspension or as a vapor through a medium in which the components move at different rates. So basically, it is the washable markers are your liquid. When you added the water, the washable marker dissolved into the water and it starting creeping over the surface of your solid (the heart.)

Once your hearts dry, you'll have valentines and a new understanding of chromatography!