You probably know what elephant toothpaste is; it's a foamy substance caused by the rapid decomposition of hydrogen peroxide using potassium iodide or yeast and warm water as a catalyst.

It's one of the most entertaining and craziest experiments to do and seems like David Dobrik, one of the most popular YouTubers, and his friends wanted to do this experiment. They ended up breaking the world record with the massive foam they created. Also, the video they shared became the most viral video of 2019 on TikTok. Potassium Iodide Catalyst

One of the people who took part in this experiment, Nick Uhas, explains in the video how exactly they came up with all the calculations they did to create the world's largest elephant toothpaste experiment ever. 

Catalysts So if you want to do this experiment at home and have fun with your friends, just watch this video and follow the steps Nick Uhas mentions. Probably it'll be the best activity you'll ever do with your friends.