Students made a chemical reaction today by combining 1/2 cup of hydrogen peroxide, a couple drops of Dawn dishsoap, and 1 tsp. of yeast dissolved in 2 tablespoons of very warm water. The reaction produced "heat" as well as lots of "soapy foam." However, not as much as the powerful strength peroxide used in the Steve Spangler experiment in the video below. I've also added the link to Steve Spangler Science as many students were asking for it.