Geyser Tube with Caps
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.
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