VERIFY host Ariane Datil and producer/editor Trevin Smith put this science experiment ... dropped a roll of Mentos Chewy Mints into two-liter bottles of Coca-Cola, Diet Coke, Pepsi, Diet Pepsi ...

Open the bottle of Diet Coke and set in on a surface you don't mind getting wet. Drop as as many Mentos as you can (it helps if you have a funnel) into a 2 L bottle ...