Audience members at the Oct. 22 "Light, EnergyÂ… Reaction!" CU Wizards show at the University of Colorado at Boulder will be invited to predict the outcome of a variety of chemical experiments. Professor Veronica Bierbaum, a chemistry and biochemistry professor at the University of Colorado at Boulder, will present the show at 9:30 a.m. in the Cristol Chemistry and Biochemistry Building, room 140. The show, aimed at students in grades five through nine, is free and open to the public.