Affiliate Links to buying the material needed for this reaction: Potassium iodide: https://amzn.to/2wzf7e7 Hydrogen Peroxide 30%: https://www.homesciencetools.com/product/hydrogen-peroxide-30-ml/?gclid=CjwKCAiAhJTyBRAvEiwAln2qB_MsGCQxj9Lft2EhuJ73Kz_p_u5yVGvj5oUwXz42W25vMlFP5SkebRoCA0IQAvD_BwE Large Erlenmeyer Flask: https://amzn.to/2JeH0uA *Note- some of the above links are affiliate links and we may receive compensation for a sale that results from clicking these links. That means you can help support this channel by using these links, but of course you can easily search for these products yourself too. Here we cover how to make elephant toothpaste using several different popular ingredients. What you'll need for elephant toothpaste: -hydrogen peroxide, yeast, water, and liquid dish soap. In this video we experiment with different ingredients to use, replacing yeast with potassium iodide (sodium iodide would work as well) and 3% hydrogen peroxide with 35% hydrogen peroxide. Note: 35% hydrogen peroxide can be bought online, but it can often also be found at many health food stores in the refrigerated section. Potassium iodide is best bought online. To make the iodide solution, add a spoonful of it into 2 TBSP of water and stir. Keep adding iodide until it no longer dissolves after stirring. Safety: 35% hydrogen peroxide can burn skin, so wear gloves and get adult supervision. The iodide forms iodine which stains really bad, so use caution and do the experiment on a surface you don't mind getting dirty (like outside). Squint Science makes science videos for kids and adults. Check out our other videos or follow us on the socials: Instagram: https://www.instagram.com/squintscience/ Facebook: https://www.facebook.com/SquintScience/