“We’re here because our science teacher is diving in one of the tanks!,” said Layla Maura, 16, as she and her friends waited outside California Academy of Sciences on Friday. Then, the doors to Cal Academy opened, and hundreds of teenagers streamed in to take over the venue for Teen Science Night. The event is planned once a year for teens, by teens at Cal Academy in Golden Gate Park. From 6:30-9 p.m. Friday, teens could visit the museum for free, attend special programs (like the teacher diving into the tank) and get connected with organizations and resources supporting teenagers in the Bay Area. Â