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The California Science & Engineering Fair is the final science fair of the academic year for students throughout the State of California in grades 6 - 12, serving California's future scientists and engineers since 1952. The fair is hosted by the California Science Center.

Judging interviews of all projects in the 71st annual California Science & Engineering Fair will be held on Tuesday, April 12, 2022. That's only 78 days away!

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Latest News from the Fair:

Fair Date
Judging for CSEF 2022 will take place on Tuesday, April 12, 2022, and will be entirely online.

Important Information About the Fair for:


CSEF Reference Library:

Our 2021 Benefactors:

2021 California Science and Engineering Fair
Special Thanks to Our Benefactors and Board

In the midst of these difficult times when the COVID-19 pandemic led to a yearlong closure of the California Science Center, the cancellation of the 2020 California Science and Engineering Fair and an entirely virtual Fair in 2021, we are especially grateful to Broadcom Foundation and The Ralph M. Parsons Foundation for supporting the realization of the 70th Annual California Science and Engineering Fair to recognize the achievements of our state’s brightest young scholars in the fields of science, technology, engineering and math.

We also thank the intrepid California Science and Engineering Fair Board members for their commitment to the student participants and their extraordinary efforts to preserve the enthusiasm for science that the Fair has come to embody. We applaud their ingenuity, resourcefulness and perseverance in the face of so many unprecedented challenges.


Haven't been to the Fair? Here are some of the photographs from previous years taken by our photographer. For the historically-minded, here's a short photo essay using photographs taken about twenty five years ago.

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Last updated: Tue Dec 7 13:07:51 2021
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