Extreme Geyser Tube

Welcome to where the explosions of science fun first occurred: Steve Spangler Science! Our Geyser Tube® was the ground-breaking tube from which the Diet Coke geyser science experiment, powered by Mentos, occurred. To date, the Geyser Tube Experiment is one of the most viewed science experiments online. If you’ve ever seen a Geyser Tube in action, you know just how addicting that wild soda eruption can be. We now have the perfect way to share this exciting soda spray gadget with everyone you know. Geyser Tube Event Packs and Experiment Fun Check out one of our Geyser Tube event packs. Just can’t get enough that addicting Geyser Tube action? Want more Geyser Tubes for your whole class? Perhaps you want to purchase multiple Geyser Tubes for your science fair experiment. Our affordably priced Geyser Tube experiments make it easy to purchase multiple units so that fun can be had by everyone in your home or classroom. Our units are great for parties, too! Geyser Tube How-To Get the perfect launch and see the Mentos and diet soda reaction for yourself every time — without getting drenched! Attach this special Geyser Tube to any plastic two-liter diet soda bottle. Secure the trigger pin, then load the desired number of Mentos mints into the tube. Once you have locked the pressurizing nozzle in place, pull the pin and clear the area. When the Mentos candies drop, the soda geyser will shoot as high as 30 feet!