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North Bay Science Discovery Day

Sunday, May 2, 2027 | 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 60 sponsors and 160 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. 

An adult exhibitor shows two young children a small animal during a hands-on nature activity at North Bay Science Discovery Day.
Children wearing gowns and surgical caps take part in a medical simulation activity with adult guides at North Bay Science Discovery Day.
A young child looks into a microscope while an adult exhibitor kneels beside him during a hands-on science activity at North Bay Science Discovery Day.
A group of adult volunteers and exhibitors, several wearing white lab coats and event badges, pose together outdoors at North Bay Science Discovery Day.

The North Bay Science Discovery Day is a free community festival bringing together 100+ organizations, supported by 60 sponsors and 160 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. 

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Contact us by emailing info@northbayscience.org or subscribing to our newsletter. 

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The North Bay Science Discovery Day is a public education event organized by the University of California, Agriculture and Natural Resources, 4-H Youth Development Program.  UC Non-Discrimination Statement  |   UC Privacy Statement 

Next Event: ​Sunday, May 2, 2027
10:00 a.m. to 4:00 p.m.
Sonoma County Fairgrounds
Santa Rosa, CA

4-H Youth Development Program logo with a green four-leaf clover and the text “4-H Youth Development Program, University of California Agriculture & Natural Resources.”
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