The first experiment I’ve done is about water evaporation. I put the pot on the oven with low heat then pour water in, the water evaporate quickly as usual. But second time, I wait a little longer and increase the heat before pour the water in, this time water didn’t evaporate, but it became bubbles rolling on the pot surface.
*This phenomenon can be explained as the Leidenfrost effect, it is a phenomenon in which a liquid, in near contact with a mass significantly hotter than the liquid's boiling point, produces an insulating vapor layer which keeps that liquid from boiling rapidly and takes longer to evaporate.
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