Ice color mixing was a great way to discover how primary colors mix to make secondary colors.
All you do is fill up an ice tray 3/4 of the way with water. Then, add red, yellow and blue food coloring to the different compartments of the ice tray. I made several of each color so we could really play. Once you let those freeze for a couple hours, you are ready to go. You then fill some clear cups up with water and add red, yellow and blue food coloring to those cups. The last step is to drop the ice cubes of varying colors into an opposing color and watch to see what color it changes to. After we did primary colors, Abby wanted to try and mix some of the ice cubes with secondary colors to see what would happen. What a fun way to really play with color. I got this idea from The Mother Huddle.