The Massachusetts State Science & Engineering Fair will be held Saturday, May 7, 12:30 to 3PM at the MIT Johnson Athletics Center, Rockwell Cage, in Cambridge (see map). It’s open to the public, as it has been since 1949. See 300 of the “best of the best” science fair research and design projects by high school students — from cities and towns across Massachusetts. Who will be the winners among these 400 young scientists and engineers? Stay for the awards ceremony at 3:30PM for $500,000 worth of scholarships & prizes. Emcee: Matt Noyes, NECN Meteorologist. Some of the 2011 projects: Diversity in M&Ms, Nova Mycobacteriophage Now, and The Omnibrella.