This "iodine clock" experiment is so cool, we feel cheated that we never got to do it in high school chemistry lab. But it turns out the popular experiment is so simple to do — involving only a bit of ...

NOTE: Make sure that you have adult supervision for this experiment AND wear your safety glasses! Add 1 teaspoon of liquid starch to 2/3 cup of water in a small glass or container. In another small ...

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When iodine comes up, you may think of table salt, but these foods can pack in significantly more of this nutrient and with potentially far less soidum.