You might have seen this wacky experiment in a chemistry class or on late-night TV. Dropping a mixture into some hydrogen peroxide produces a huge foamy flume. But what鈥檚 actually causing that big mess? Turns out it鈥檚 a great illustration of a key concept in chemistry: catalysts. In this week鈥檚 video,听搁别补肠迟颈辞苍蝉听teams up with chemistry professor Matt Hartings, Ph.D., to explain the Elephant Toothpaste experiment (with the help of our awesome new high-speed camera).
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