Have you heard of chromatography? If not, let me do a little bit of explaining.
During this lab we started out with a single filter. Then, we poked a hole in the center of the filter. Then, we colored a design onto the filter. After the design was completed, we rolled a paper towel and stuck it through the hole. Finally, place the paper towel in the water with the paper towel hovering right above the water.The colors closer to the middle have more molecules than the outside colors. The black color is all the colors mixed together. Once water hits it the colors will spread out once again. The results of the lab were: