Steve Spangler Science. The scientific name for this color separating is chromatography, and can easily be performed.
Can you see how the water pulled the colors out of the black pigment?
Different types of markers made different color patterns.
Our other colors ran or bled, but they did not produce a rainbow of colors like the black did.
As more time passed, the color traveled further and further from the center.
Have you tried any chromatography science or art investigations? We'd love to hear about them!