Put about 1 cm of milk in a shallow pan and sprinkled food coloring around the outside. Dip a toothpick in dish soap and touch the milk with the toothpick. Watch the reaction that takes place!
I’m not going to tell you what happens because that will ruin the fun. But I will tell you it was so cool, B asked to do it 3 other times. The scientific explanation for this reaction is way over my head, but I do know that it is a quick and easy way to let B “experiment” with Science.
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