Northeastern University’s  Splash! — a free program for high-school students to take mini-classes led by Northeastern undergraduate and graduate students — will be held in-person on November 13, 8:45AM-7:40PM,  in Ryder Hall (11 Leon Street, Boston).  It’s free (including pizza and a T-shirt), and it’s hosted by NEPTUN (a Northeastern University student group). Registration opens October 19. Masks are required at the event.