Chemistry: What's Hot Now: Glowing Mentos & Soda Fountain

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Glowing Mentos & Soda Fountain Aug 17th 2011, 10:02 This part is really easy, but it happens fast. The fountain sprays as soon as you slide all of the mentos (at once) into an open bottle of soda. I made a video of this project, in case you would like to see it in action. How to Get the Best Glowing Fountain Remove the label from the bottle of tonic water so that you can see the whole bottle glow. Of course, this will be pretty boring until you turn on your black light, so if you haven't done that, do it now. Place it where it won't get drowned in tonic water, which could present an electrical hazard. The trick to getting a spectacular fountain is to make sure all of the candies drop at once into the bottle. Unwrap your Mentos candies and stack them in a tube made from paper or cardboard. The candies won't fall out of their original wrapper quickly or reliably enough, in my opinion. We rolled up a sheet of notebook paper so that the candies would all fit in side, but would easily fall out the bottom. Eric put his finger in the bottom of the tube to keep the candies from escaping. Line up the tube containing the candies with the open bottle of soda. Eric just removed his finger and all of the candies fell. An alternative is to set a piece of paper or cardboard over the mouth of the bottle. Remove the card when you want the candies to fall. We used room temperature tonic water. Warm soda seems to fizz a little better than cold soda, plus it is less of a shock when it splashes all over you.

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