Death by Mentos - Playing with Science

There is a long history of people doing stupid things with coke and mentos and filming it for the internet.

This has to the one of the best! Short and sweet.

https://www.youtube.com/watch?v=8CWP863GJWA&feature=player_embedded

But why do mentos react in this way?

It involves a process called nucleation. All the carbon dioxide in the coke - the fizzy stuff - is squeezed into the liquid and looking for a way out. It’s drawn to any tiny bumps that it can grab onto. and there are so many microscopic bumps on the surface of a Mentos that an incredible number of bubbles will form around the Mentos when you drop it into a bottle of soda.

Since the Mentos are also heavy enough to sink, they react with the soda all the way to the bottom. The escaping bubbles quickly turn into a raging foam, and the pressure builds dramatically.

All that pressure has got to go somewhere, and before you know it, you've got a big geyser happening!

Anyone want to eat a pack of mentos and then drink a litre of coke? :D

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