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The Mission of the Orange County Science and Engineering Fair a nonprofit organization is to foster scientific literacy and critical thinking skills for all students throughout Orange County by providing equal opportunities in Science Technology Engineering and Mathematics STEM education culminating in the Annual Orange County Science and Engineering Fair and the STEAM Showcase. To achieve our Mission OCSEF supports teachers with workshops and provides mentoring to enhance their science curriculum and promote local school science and engineering fairs. 67 Years 38k Registrated Projects 40k Participating Students 700k Awarded to Winners Science Fair Statistics 101 How to use statistics in your science project 2025 OCSEF Registration Ask a ScientistEngineer How to Enter the 66th annual Science and Engineering Fair STEAM Showcase 1 Scientific Review Committee SRC 2 Teacher consent and application registration 3 Poster board 4 Presentation 5 Results Home Our Sponsors Teachers Students Competition Connect With Us . .