Today's chemical experiment explored the reaction between Mentos and Coke.
We found a clear area where it would not matter if we made a bit of a mess.
Then we added a tube of Peppermint Mentos to a 1.5 Litre bottle coke.
(We had to do this very quickly as the reaction is instantaneous!)
The coke very quickly spurted out of the bottle like a fountain.
(As you can see Miss White dropped a couple of Mentos as
she was not quite fast enough getting them in the bottle.)
Apparently the greater the amount of Coke the better,
and the Mint Mentos create the biggest reaction.
The reaction actually occurs due to the rough coating of the Mint Mentos lollies.
The dips in the coating enable bubbles to form (watch the video
below to see a demonstration of this) and quickly multiply in number.
The Fruit Mentos have a thin, smooth wax coating around them which prevents
bubbles from forming on the lolly's surface as they did with the Mint Mentos.
Mythbusters explains this reaction in the YouTube video found below (or at this link.)
On Monday 23rd August in Mexico City a
World Record was broken for the most Mentos and Coke fountains in one go.
Watch the video below to view this world record taking place.