Everybody is aware of the Diet Coke and Mentos eruption scenario, which happens when the two are mixed. David decided to do an experiment using this concept. He wanted to find out what happened when you put a Mento into still water, and then carbonate the water to see if the effect would be any different. It turns out, if you put a Mento into any kind of fizzy liquid, it will result in a big mess. Credit: YouTube/VivaFrei