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LOS ANGELES COUNTY SCIENCE & ENGINEERING FAIR
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  • 2026 Results
    • 2026 Category Awards
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  • Competition Info
    • 2025-26 Important Dates & Deadlines
    • LACSEF info 25-26
    • How to Enter >
      • How to Participate
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      • Student Project Registration Info
    • Eligibility Policy
    • Rules & Regulations >
      • Project Rules & Regulations
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  • Pre-Approval
    • Understanding the Pre-Approval Process: Applying for Pre-Approval (PDF)
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    • 2026 LACSEF PROGRAM
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    • Site Coordinator 101
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    • Fee Payment & Waiver Form
    • Additional Resources >
      • Preparing for Judging and Interviews at the Fair
      • How to Prepare Your Display
      • How to Do Science Fair Projects (JPL video series)
      • State Fair Must Read!!
      • Special Awards to be Presented if Criteria is Met
      • How Science Fairs, Common Core State Standards, and NGSS are related (PDF)
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    • A little history…
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Competition Info

Competition Info

Important Dates & Deadlines 2025 – 2026

LACSEF info 25-26 (PDF)

  • How to Participate
  • Fee Payment & Waiver Form
  • Student Project Registration

Eligibility Policy

Rules and Regulations

Display Regulations

Category Descriptions

 

SPONSORS

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Scenes from Past Fairs!

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Judging Day

LA County Science Fair

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LA County Science Fair



STUDENT PHOTOS

S1301-Adrian Pham and Ilia Ghatei_woodland hills

S1405_Seth Nabat_Woodland Hills

S1513_Tinwin Htun_North Hollywood_

S1301_team_woodland hills

S1009_Neil Hu_Temple City

S0811A-Anish Anand_Palos_Aerdes judging 2

S0905_Mingfei Xu_south pasadena

S1124_Yanjun Chen_Palos Verdes_judging

S1216_Chloe Chen_Brentwood_judging

S0811A_Anish Anand_Palos_Verdes_judging

S0703_Chin_and_Lin_Claremont

S0602_Zichen Wei_judging

S0602_Zichen Wei_Claremont

S0518_Inu Cho_Palos_verdes_judging

s0411-2

S0411_Maryam Solinman_Sydney Wynn_Palos_Verdes

S0211_Aidan Filson_Claremont

S0317B_Aaron Lee_judging_Carson_Long_Beach

S0304A_Team_Brentwood

S0111_Adam Lu_Michael Chao_Palos Verdes



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