5 Easy At Home Science Experiments w/ Mark Rober

By CrunchLabs

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Does anyone know how to get food coloring off of your hands? Asking for a friend... Get your very own CrunchLabs Build Box! Get 2 FREE boxes at https://crunchlabs.com/5AtHomeExperiments I started a company called CrunchLabs where we build a toy together and then I teach you all the juicy physics of how it works. So if you want to learn to think like an engineer and have a really fun time doing it, check out the current promotion where you get 2 FREE boxes at https://crunchlabs.com/5AtHomeExperiments Science Bob’s top secret at home elephant toothpaste recipe: A clean 16 ounce (473 ml) plastic soda bottle or a water bottle. 6 Ounces of 20-volume hydrogen peroxide liquid (20-volume is a 6% solution that is stronger than what you find in most pharmacies. It is typically used for lightening hair and is found at many beauty supply stores. You can use the 3% hydrogen peroxide found in pharmacies, but the reaction will be a bit smaller) 1 Tablespoon (15ml – one packet) of dry yeast