Orange County Science & Engineering Fair

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Orange County Science & Engineering Fair The Orange County Science and Engineering Fair (OCSEF) is a nonprofit educational organization dedicated to promote STEM in Orange County, CA.

✨OCSEFhacks is back! The two day hackathon will be November 14-15, 2026 at Westminster High School. This free collaborat...
10/07/2026

✨OCSEFhacks is back! The two day hackathon will be November 14-15, 2026 at Westminster High School. This free collaborative event allows students to work as teams or individuals to solve a certain problem using computer science. Open to 6-12th grade students. All coding skill levels welcome!

‼️Register today: https://ocsefhacks.org/

We are excited to announce that OCSEF has received a generous multi-year grant from the Arnold and Mabel Beckman Foundat...
09/30/2026

We are excited to announce that OCSEF has received a generous multi-year grant from the Arnold and Mabel Beckman Foundation! A huge thank you for their continued support of the Orange County Science and Engineering Fair and student exploration of STEM.

Are you interested in starting a science or engineering project, but don’t know where to start? Do you need help decidin...
09/21/2026

Are you interested in starting a science or engineering project, but don’t know where to start? Do you need help deciding on a project idea?

✨Check out this new video from OCSEF alum Maya Gandhi called Developing a Project Idea! She offers valuable tips on how to discover what interests you and how to pick an idea for your project.

‼️Watch the video at https://youtu.be/Shs65-Ljh10.

✨Congratulations to OCSEF Alum Alexander Miller for being named a 2026 Davidson Fellow!Project Title: Universal Quantum ...
09/18/2026

✨Congratulations to OCSEF Alum Alexander Miller for being named a 2026 Davidson Fellow!

Project Title: Universal Quantum Error Mitigation via Random Inverse Depolarizing Approximation

The Davidson Institute () offers programs, resources, scholarships, and opportunities for gifted young learners. The Davidson Fellows Scholarship is a prestigious scholarship for high-achieving students.

✨Congratulations to OCSEF Alum Virinchi Madireddy who was named a Top 30 Finalist for the 2026 Thermo Fisher Junior Inno...
09/18/2026

✨Congratulations to OCSEF Alum Virinchi Madireddy who was named a Top 30 Finalist for the 2026 Thermo Fisher Junior Innovators Challenge! The finalists will travel to Washington, DC from October 23 - 28 to participate in the Finals Week of the competition.

Virinchi Madireddy (8th Grade, California Connections Academy)
Project Title: Hidden Threats in Organic Fertilizers: A Study of Antibiotic Resistance in Commercial Animal-Based Fertilizers

‼️Pre-Approval Registration for OCSEF 2027 began September 1st! This is required for ALL projects that include human par...
09/03/2026

‼️Pre-Approval Registration for OCSEF 2027 began September 1st! This is required for ALL projects that include human participants👩, vertebrate animals🐾, biological hazards☣️, or potentially hazardous ⚠️ chemicals, materials, devices or activities. Students must receive SRC Approval before starting these types of projects. Don’t wait to register!

✨Check out the updated OCSEF Flowchart to see if your project requires pre-approval and the NEW Forms you need for 2027! Find all forms and documents at the links in our bio.

We are proud to announce that seventeen young scientists from OCSEF 2026 were named to the Top 300! Visit ocsef.org/ne...
09/02/2026

We are proud to announce that seventeen young scientists from OCSEF 2026 were named to the Top 300! Visit ocsef.org/news for the list of OCSEF students and their projects. Congratulations to them and all of the young scientists around the country.

Founded and produced by the Society for Science, the Thermo Fisher Scientific Junior Innovators Challenge is the premier STEM competition for middle school students. The top 30 finalists will be announced September 16th.

✨Project registration is NOW OPEN to students for the 72nd annual Orange County Science & Engineering Fair!‼️Don’t wait ...
09/01/2026

✨Project registration is NOW OPEN to students for the 72nd annual Orange County Science & Engineering Fair!

‼️Don’t wait until the deadline to complete your 2027 OCSEF online application to register your project. Visit https://ocsef.smapply.io to start your application today.

OCSEF 2027 IS GOING BACK IN-PERSON!!✨We are SO excited to be in-person again for our county science & engineering fair! ...
09/01/2026

OCSEF 2027 IS GOING BACK IN-PERSON!!

✨We are SO excited to be in-person again for our county science & engineering fair! We can’t wait to see everyone at Santa Ana College on March 12-14 for the 2027 Fair. Stay tuned for more details…

Project Registration begins - September 1
Pre-Approval begins - September 1
Pre-Approval ends - November 2
Regular Registration ends - February 1
Project Submission ends - February 22
Project Setup - March 12
Judging - March 13
Awards Ceremony - March 14

Big News! OCSEF is excited to announce that we are planning an in-person fair for March 2027! But we need your help to m...
03/26/2026

Big News! OCSEF is excited to announce that we are planning an in-person fair for March 2027! But we need your help to make it happen.

Please consider donating to OCSEF. As a volunteer run non-profit organization for 71 years, we rely completely on sponsors and donations to provide the Orange County regional science fair. All funds go directly into supporting the fair and promoting STEM to students in Orange County. All contributions are tax deductible. Visit https://ocsef.org/campaign today!

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Huntington Beach, CA
92648

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