How to Make a Soda Explode
- 1). Conduct the project in an area where cleanup will be easy, such an area in the yard away from the buildings. Wear protective or old clothing in case you're sprayed by accident.
- 2). Place a 2-liter bottle of soda on a flat, level surface. Open one end of the Mentos package. Remove the lid of the soda and, in one quick motion, deposit all of the Mentos tablets into the bottle.
- 3). Back away from the bottle as quickly as possible to watch the explosion. Approach the bottle only after you're sure it is done.
Source...