Science OlympiadDivision B & Division C

Division B covers grades 6-9 (middle school) and Division C covers grades 9-12 (high school), so 9th grade overlaps. The rules cap a Division B team at five 9th graders and a Division C team at seven 12th graders. In practice a 9th grader competes with the school they actually attend — still at a K-8 school means Division B, already in high school means Division C — and a student may compete in only one division per year. An Irvine Unified School District student follows the same rule based on the school they attend, moving into Division C the year they start high school without any separate application.

No. Science Olympiad is school-based: a team is up to 15 students who must come from the member school, and recruiting from neighbouring schools or districts is explicitly not allowed — public school students may compete only with the team at the school they attend. The realistic route is to find a teacher or parent willing to coach and start a team at your own school. Homeschoolers form teams under Science Olympiad's separate homeschool policy.

Orange County Division B and C teams compete at the Orange County regional held at UC Irvine (the 2026-27 date has not been posted yet). Winning teams advance to the Southern California State Tournament in April, and the state champions represent SoCal at the National Tournament, which is at The Ohio State University on May 14-15, 2027.

Southern California Science Olympiad opens registration the Tuesday after Labor Day — September 8, 2026 for this season — and closes at 11:59 pm on December 2, 2026, or when regional spots fill, whichever comes first, with a limit of three teams per school at the regional. Registration counts as complete only after the online form, principal verification of the head coach, payment of dues and any regional forms. Start in the first week of September.

National Science Olympiad does not publish a single fee; membership runs through each state chapter. In Southern California the dues amount is sent to each team after the online registration form is submitted rather than posted publicly. Beyond dues, the main costs are materials for build events plus entry fees and travel for invitationals. The rules manuals themselves are free PDFs, so there is no required book to buy.

It works like a track meet for science: a team of up to 15 students competes in 23 events in one day, pairing off in twos and threes while written tests, lab events and device testing run in parallel. Each event scores by placement (first place scores 1 point) and the lowest team total wins, so roster strategy is itself a skill. Teams typically give each student three or four related events plus one build event.

Yes, and it is highly legible to STEM readers. Admissions officers treat it as reliable evidence of both breadth and depth: placing consistently across 23 events requires self-directed study, real lab skill and disciplined teamwork at once. Nationals also distributes sponsor-funded scholarships and special awards. For Irvine families there is a practical bonus — the path is close to home and runs six straight years, from Division B in middle school to Division C in high school.

Three things. Lock in event assignments as soon as the rules manuals drop in September, so study material compounds and schedules don't collide. Start build events — bridges, Boomilevers, launchers — early; they are won by repeated testing to failure and logged data, and starting two weeks out almost guarantees a poor placement. And enter invitationals: Southern California hosts eight or more a season, and they are the only chance to make mistakes under real timing and proctoring before the regional.