The 2025 ACS Orange County Chemistry Olympiad Local Section Exam (LSE) competition was held on Saturday, March 1, 2025, from 8:45 am to 11:00 am in the Liberal Arts (LA) building at Irvine Valley College, Irvine CA 92618. There were 248 High School students from 41 high schools from around the County who participated.
A group of top individual students on the LSE advanced to the US National Chemistry Olympiad (USNCO), was held on Saturday April 12, 2025. This exam is 4.75 hours long (plus breaks), and includes written & lab components. The top twenty scorers in the entire U.S. on the USNCO will be invited to attend the National Study Camp in June.
The top four students at the National Study Camp will represent the U.S. at the 56th International Chemistry Olympiad which is tentatively scheduled for July 5-14, 2025, in Dubai in the United Arab Emirates.
The top student from each school, the top six school teams and those who competed in the USNCO will be honored at the Orange County High School Chemistry Awards Banquet on May 21, 2025.
Read here for more background about the Chemistry Olympiad competition.
Click on the buttons below for important information on how to participate.
Click the button below for a map of the Irvine Valley College campus:
For examples of past exams to help students study, click this button:
For questions, please contact Brent Shenton at lnbshenton@gmail.com .