STEM Activity: The romping rainbow

What could be more fun than to help your preschooler make their very own rainbow? This simple experiment is part STEM (Science, Technology, Engineering and Math), and part STEAM (with Art added in).

For weeks, Bryn’s endless questions have focused on “what color does that make?” It doesn’t matter what two colors, she has to KNOW right NOW. Again and again. Oftentimes, my answer is brown. What color does red and green make? Brown. What about purple and orange? Brown. Or red and orange? Uhh, an orangey-red? Coral? I don’t know exactly what you’d call it.

We have done several color-mixing activities using various paints, but the pigments can be tough to work with sometimes to get predictable results. Blue and red, for instance, might make more of a blue-ish color than a real purple. It’s frustrating when I want to show Bryn how blue and red make purple, her favorite color, and it doesn’t exactly work out!

We decided to do a Romping Rainbow experiment, and it was super simple but still had that preschool WOW factor. I hope you try it and have fun learning as much as we did! Continue reading