Professor Casey Hynes of the CU-Â鶹ӰԺ chemistry department will explain "what happens when something burns" at the next CU Wizards show, "The Chemical History of a Candle," on Saturday, Nov. 27, on the CU-Â鶹ӰԺ 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.