Pre K scientists drew on paper towels with primary color Crayola markers. Then, they used micro pipettes to drop water on their drawings. The colors blended and created secondary colors as the water absorbed into the towel.
I drew a picture on a paper towel before class, but when I dropped water on it, nothing changed. Why? I drew my picture with Sharpie markers. We learned that some markers are permanent, while others are washable.