The North Bay Science Discovery Day is a one-day public free science festival designed to spark children's wonder and curiosity for science, technology, engineering, and mathematics. With over 70 organizations and 100 hands-on interactive exhibits, explore rockets and beehives, robots and sharks, catapults and hearts, animation, animals, and art, and more. Meet and talk to professional scientists and engineers.
Admission and parking are free. No tickets needed. Rain or shine. 

Learn more at www.northbayscience.org/