On May 19, in our library laboratory «Funny Science» the experiment «Toothpaste for an Elephant» was conducted. For this experiment, we needed: hydrogen peroxide, liquid soap, yeast, warm water and food coloring. Experience shows how hydrogen peroxide breaks down into water and oxygen, and yeast serves as a catalyst, that is, makes the reaction faster. Well, thanks to the soap, big bubbles are obtained! The result is a foam volcano. Anyone can easily do this experiment at home!