A Fountain Of Diet Coke

I first saw the Mentos eruption on MythBusters, where they dissected its cause and also broke the world record with a 33 foot high geyser (or something around there).

  1. Buy a package of Mentos. They’re a mint candy that come in a cylinder wrapper. Get the regular flavor.
  2. Buy a big bottle of Diet Coke Cola. I haven’t tried other brands because I’ve read that brand works the best, but cheaper brands would probably work, too.
  3. Place the Coke on the ground away from anything you don’t want splattered. I recommended a radius of 10 feet.
  4. Take the top off the bottle.
  5. You want to put as many of the Mentos in the bottle at once as you can. A test-tube works great, else try to hold five or six between your fingers as a cylinder.
  6. Drop the Mentos in the bottle (the more, the better) and back away from it.
  7. Watch the fountain-geyser-eruption.

Your kids will have a newfound respect for you after this. They’ll be in awe.

There are a lot of videos available of the Mentos and Coke explosions. The domino one is fun to watch.

I imagine that exploding volcanoes will be a popular school science project this year.

5 Replies to “A Fountain Of Diet Coke”

  1. Isn’t Mythbusters great? I haven’t seen the Mentos episode, but I watch it all the time — great show. I can only imagine how they went at the Mentos challenge. Did it involve a dead pig somehow?

  2. Not that I know of, but apparently, there are partial episodes or clips on Google Video. I can’t view videos at work, so I can’t tell you if they are worthwhile watching.

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