Original Mentos Diet Coke Geyser - Cool Science Experiment

Find out more information and check out other cool science experiments at Here’s the original Mentos diet coke geyser video from September 2005 that started the whole thing. Just a bottle and a roll of Mentos. This Spangler video has been duplicated on other sites, but this is the high quality original. About Steve Spangler Science... Steve Spangler is a celebrity teacher, science toy designer, speaker, author and an Emmy award-winning television personality. Spangler is probably best known for his Mentos and Diet Coke geyser experiment that went viral in 2005 and prompted more than 1,000 related YouTube videos. Spangler is the founder of , a Denver-based company specializing in the creation of science toys, classroom science demonstrations, teacher resources and home for Spangler’s popular science experiment archive and video collection. Spangler is a frequent guest on the Ellen DeGeneres Show where