Complex scientific concepts of light, polarization and optics will be explained using a giant soap bubble, sunglasses and scarab beetles, among other things, at the March 25 Wizards show on "Liquid Crystals." Physics Professor Noel Clark and chemistry Professor David Walba, both at the University of Colorado at ºù«ÍÞÊÓƵ, will present the entertaining multi-media show at 9:30 a.m. in Duane Physics room G1B30. The free hour-long show, which combines physics, chemistry and engineering, is intended primarily for students in grades five through nine.