Steve Spangler created Boo Bubbles as an easy and safe way for parents and teachers to explore the science of dry ice with fog-filled bubbles. This science kit for kids is simple to use. Just fill the bubble generator with warm water and a few pieces of dry ice, then dip the bubble blower in the solution and get ready to make the most ghostly and exciting bubbles you’ve ever seen. When the dry ice reacts with the water, smoke-filled bubbles are forced out of the bubble generator. By controlling the flow of the gas, it’s easy to make any size bubble. Best of all, when the bubble pops, a burst of fog is released, and kids scream with delight: “Do it again!”