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Welcome to the 66th Annual Greater San Diego Science and Engineering Fair!  We look forward to your students’ participation in the 2020 GSDSEF. 


Science Fair Week is March 10 - 15, 2020. See below for more details.


We are excited that the GSDSEF will for the first time invite 6th grade students to participate— and we will continue to invite team projects in the Junior Division. 


NEW!!! Changes for 2019-2020

6th Grade Teachers and Students—Welcome to the Greater San Diego Science and Engineering Fair!!  Participation in this iconic science competition is a wonderful opportunity for your students to showcase their science/engineering/mathematics knowledge.  We strongly recommend that 6th grade teachers and students attend a workshop on Thursday, September 19th at the San Diego County Office of Education which will explain how to develop competitive projects for the GSDSEF. 

This workshop is also for any 7th and 8th grade teachers new to the science fair experience.

Sign up for the workshop.


Proposals and Certifications - Students will now have to make GSDSEF accounts and submit their Proposals and any necessary Certification Forms and other forms BEFORE beginning on their projects. They may proceed with their projects AFTER receiving GSDSEF approval to proceed.  This should happen in September and October, 2019.   


Rules and Guidelines - ISEF and CSEF have updated rules and guidelines for 2020. These will be be enforced at the GSDSEF in order for students to qualify for ISEF and CSEF. This includes having all necessary forms signed and approved before experimentation begins.


2019-2020 GSDSEF Calendar


September - November, 2019—Students make GSDSEF accounts and submit Proposals and Certification Forms/Continued Project Forms.  Students begin on projects AFTER  GSDSEF approval.

Students work on projects after necessary approvals through January, 2020.

~January 22th - ~February 12th, 2020—Project Screening

For a complete list of important dates, please visit the schedule page.


See the Highlights and Results of the 2019 GSDSEF, CSEF, ISEF, and Broadcom MASTERS on About: 2019 Results.