MIT’s Edgerton Center presents Science on Saturday, a free, fun, 60-minute session for elementary, middle-, and high-school students.  On May 10, the focus will be on Materials with Magical Properties.  Students from MIT’s Department of Materials Science will conduct on-stage demonstrations with assistance from the audience.   After the show, there will be activity booths for hands-on experiments.  Seating is limited and first-come/first-served.  Adult escort required for children under 12.   The event will be held 10-11AM in MIT Kresge Auditorium, 48 Massachusetts Avenue in Cambridge.  Park at the West Garage or Albany Street Garage ($5 with a credit card).