The viral Diet Coke and MENTOS experiment that Steve Spangler invented has matured over the years into this amazing product. Create an awesome geyser (up to 30 feet high!) using only the included candy and a bottle of soda. The Geyser Tube was created especially for this amazing experiment and allows you to safely load and dispense the candy into the soda so that you can control the timing and create the most incredible soda eruption possible. Comes with 4 bottle tops allowing you to pick the shape of your stream: Geyser, Fountain, Fan, or Run Away.
Learn the science behind the internet sensation, make your own diet soda and Mentos geyser
Interchangeable caps let you decide what kind of spray you want to make you each time you set off a new geyser
No more wasting soda trying to get all the Mentos in the bottle at one time, this is a fool-proof method for making a 25-foot geyser
Comes with a roll of Mentos but you can try other activators to see what works best, it's all part of the science
Great science fair experiment