The College of Sciences and College of Engineering at San Diego State University open their doors to K-12 students and families to showcase 22 interactive exhibits such as: CSI Meets CSU, Show-Me Geology, telescopes, planetarium showings, laser demonstrations, SuperSonic Ping-Pong Balls, Electron Microscope Facility, aerospace, robotics, making ice cream using liquid nitrogen, X-ray Crystallography, and much more.
http://sdsu.edu/sampler