Professor Casey Hynes of the Å·ÃÀ¿Ú±¬ÊÓƵ-Boulder chemistry department will explain "what happens when something burns" at the next Å·ÃÀ¿Ú±¬ÊÓƵ Wizards show, "The Chemical History of a Candle," on Saturday, Nov. 27, on the Å·ÃÀ¿Ú±¬ÊÓƵ-Boulder campus. The hour-long show begins at 9:30 a.m. in the Chemistry Building, room 140, and is free and open to the public.