More than 150 students in grades six through 12 took part in a countywide science fair at Sonoma State University on Friday.

Organizers said the Synopsys-Sonoma County Science Fair drew students from 20 public and private schools, showcasing the work of future scientists, doctors, technology experts, engineers and mathematicians.

The event included a competition recognizing the achievements of middle and high school students who were challenged to go beyond their classroom studies to complete independent research-based science projects. A group of about 60 scientists and industry partners judged more than 100 projects.

Organizers said it was the largest science fair in event history. Synopsys Outreach Foundation helped underwrite the event.