By placing a mirror in water in a shallow pan, and then setting that in the sun, rainbows will be reflected. This would work better inside near a window, but it worked to reflect the rainbows onto the paper.
Showing off their "report."
For this one we were seeing how mixing Primary colors makes all the colors in the rainbow. Pour 1 cup milk into a shallow pan. Place a few drops each of red, yellow, and blue in separate corners of the pan. Then drop a few drops of liquid dish washing soap into the middle of the pan. The soap will pull the colors toward each other and they will mix.
Making thumbprint watercolor rainbows.
Our fancy-schmancy snack to go with our theme.
