The concluding event of the Bay Area Science Festival for the North Bay- a FREE science extravaganza that's too big for just one side of the Golden Gate Bridge! Last year, more than 40,000 people enjoyed a non-stop program chock-full of interactive exhibits, experiments, games, and shows, all meant to entertain and inspire in San Francisco. This year, come and unleash your inner scientist at the Sonoma County Fairgrounds.