Today Mr. Olson did the elephant toothpaste experiment. :3
He put some hydrogen peroxide and dishwashing soap together, and he said it was supposed to react really slowly and finish reacting after a couple days. But when he put a catalyst in, potassium iodide, the solution suddenly turned yellow, and bubbled right over the cylinder :o
It was really hot and steamy yellow puffy stuff!
Like this!
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