3. Close off one end of the tube by cutting a little circle or square of paper and taping it to one end of the tube. 4. Open the pack of Mentos and place all of them in the tube. 1. Slowly and ...

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 ...

The hands-on experiment involves dropping several Mentos Chewy Mints into a bottle of Diet Coke, which can cause a stream of the diet cola to shoot many feet into the air within seconds.