The Mendocino County 

Science & Engineering Fair and STEAM Expo! 

Congratulations to all the winners of the 

38th Annual Mendocino County 

Science & Engineering Fair! 

HERE is the complete list of winners 

State Qualifiers 

Judges' Registration

Community judges make all the difference! 

We need many many judges to make the fair run smoothly and equitably. 

Please consider volunteering as a judge in 2025 by filling out our registration link HERE

"Being a Science Fair Judge" 

Volunteer Links

Volunteers are needed for running student activities, assisting the judging, and general event coordination.  Volunteers can sign up with their preferences below. There are time slots throughout the day from 8am-6pm please select what works for you.  Continental breakfast, coffee, snacks, and lunch are provided. 

HERE is the link to sign up to be a volunteer in 2025


The 2024 Theme is: 

Sustainable Mendocino 

The STEAM EXPO is open to all students and community members attending the fair 

If you are interested in contributing to the EXPO as a Community Partner, please email