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Saturday, March 7, 2026 | 10:00 a.m. to 4:00 p.m.

The North Bay Science Discovery Day is a one-day, free community science festival to spark curiosity and wonder in children and families. The festival brings together 100+ organizations and 10,000 attendees — supported by 70 sponsors and 150 volunteers — for youth to talk with scientists and engineers while exploring 150+ interactive exhibits, from rockets and beehives, robots and sharks, catapults and hearts, animation, animals, art, and more. Admission and parking are free, and no tickets are required. Rain or shine. 

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The North Bay Science Discovery Day is a free community festival bringing together 100+ organizations, supported by 70 sponsors and 150 volunteers,
to spark young people’s wonder and curiosity about science, technology, engineering, and mathematics (STEM);
to strengthen the San Francisco North Bay’s STEM learning ecosystem; and
to connect the STEM industry, education, and public sectors to deepen and sustain young people’s STEM learning. 

Next Event: ​Saturday, March 7, 2026
10:00 a.m. to 4:00 p.m.

Sonoma County Fairgrounds
Santa Rosa, CA
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A public education event organized by the University of California, Division of Agriculture and Natural Resources 4-H Youth Development Program.  

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