In the activity below, you can make a colorful art material that ... Add enough water to a paper plate to cover the bottom of the plate. Add 1 drop of blue food coloring near the center of the plate.

In the activity below, you can try chromatography to separate colors in a mixture of food coloring! Place a coffee filter on a ... If you look closely, you’ll be able to see a thin circle of blue on ...

Household bleach reacts with a solution of green food coloring to first oxidize the yellow component of the dye, leaving only the blue coloring. Eventually, the blue dye is also oxidized, and the ...