On Target: City College of San Francisco will hold a ribbon-cutting ceremony and an open house Friday for its new “Walk Through The Story of Time and Life” exhibit, a four-floor walking tour of exhibit items on long-term loan from the California Academy of Sciences. Chancellor Don Griffin will be on hand for the festivities, which begin at 3 p.m. The exhibit is in the basement of Science Hall at the CCSF Ocean Campus, 50 Phelan Ave.
