Here is a fun, quick, and simple little science project we did on a hot day last week. I gave each of the kids six jars, three large and three small. The large ones had water with red, yellow, and blue food coloring, the primary colors. We placed them in a row and put the smaller jars in between. Then they mixed colors to make orange, green, and purple. They, of course, enjoyed getting to pour and mix water, and also learned how the primary colors blend to make the others. After that they had fun mixing and pouring and coming up with different shades.
A few days later we dyed silk- with Kool-aid, in all the colors of the rainbow. Lots of fun!