5 small boxes of Jello (different colors)
Follow directions on Jello box, mix a new flavor each day. Each day, layer the jello mix over the one from the previous day. By Friday, you have an edible rainbow.
(You could use the recipe for Jello Jigglers instead.)
- Divide you class into five groups and a different group gets to “cook” each day.
*To vary the shade, add a wee bit of evaporated milk in the water.