Coffee Filter Rainbows

Coffee Filter Rainbows

How we did it:

Materials List

  1. coffee filters
  2. liquid watercolor paint - or food coloring
  3. droppers
  1. Fold the coffee filters in half and set up some liquid watercolors (in rainbow colors, of course) to use.

  2. Use a dropper to “paint” rainbows on the coffee filter. Watch how some of the colors blend together!

  3. Let the coffee filters dry and then open them up. Do you see the rainbow? What other color combinations can you experiment with?