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Welcome to the Diocesan Science and Engineering Fair!
Welcome to the Diocesan Science and Engineering Fair!
The Knights of Columbus Diocesan Science and Engineering Fair is a qualifying fair for the University of Utah Science and Engineering Fair, which sends winners to the Regeneron International Science and Engineering Fair (high school), as well as to the BroadCom Masters competition (middle school). Catholic school students in Utah who advance from their school fairs should register for the Diocesan Science and Engineering Fair.
Participants, Teachers, and Judges, please see the links to content directed at you in the top right corner of the page.
Participants, Teachers, and Judges, please see the links to content directed at you in the top right corner of the page.
Congratulations to all of the students who participated in the 29th Annual Diocesan Science and Engineering fair! The Awards List can be viewed HERE.
Congratulations to all of the students who participated in the 29th Annual Diocesan Science and Engineering fair! The Awards List can be viewed HERE.
The 30th annual fair will take place in 2026 on Saturday February 7th, starting at 9am. We hope to see you there!
The 30th annual fair will take place in 2026 on Saturday February 7th, starting at 9am. We hope to see you there!
Important Dates:
Important Dates:
The 2026 Diocesan Science and Engineering Fair will be held Saturday, February 7th.
The 2026 Diocesan Science and Engineering Fair will be held Saturday, February 7th.
To register as a student, teacher, or judge, for the fair, please go to: DSEF Registration Form
December 2025 (TBD): Registration Opens for Judges.
January 2026 (TBD): Registration Opens at 8am for Students
January 2026 (TBD): Student Registration Closes at Midnight
January 2026 (TBD): Judge Registration Closes at Noon
February 7, 2026: Student Participants and Judges check in at Juan Diego Catholic High School in Draper, UT, starting at 8am. Judging begins at 9am.
Awards Ceremony will take place after lunch on the date of the fair, February 7th.
DSEF Fair Awards Ceremony Program (2025 for reference)
Science Fair News
Science Fair News
Congratulations!
Congratulations!
2024 Diocesan Fair Participant Arianna Vazquez, from Juan Diego Catholic High School, was chosen to represent Utah at the GENIUS Olympiad competition.
2023 Diocesan Fair Participant Alea Pindat-Kahele, from Juan Diego Catholic High School competed at the GENIUS Olympiad in Rochester, NY, earning a Bronze medal.
2022 Diocesan Fair Participant Mercedes Randhahn, from St. Joseph Catholic School in Ogden, was chosen as a Grand Prize Winner at the University of Utah Science and Engineering Fair, and advanced to the Regeneron International Science and Engineering Fair, where she placed second in her category!
2020 Diocesan Fair Participant, Keegan Gilbert, from Juan Diego Catholic High School, was chosen as a Grand Prize Winner at the University of Utah Science and Engineering Fair, and advanced to the Regeneron International Science and Engineering Fair, held virtually that year.
2019 Diocesan Science Fair Participant Mercedes Randhahn, from St. Joseph Catholic School in Ogden, was named one of KSL's 2019 Utahns of the Year for her participation in science fair! Mercedes advanced to BroadCom Masters in Washington D.C., where she placed Second in Engineering. Congratulations, Mercedes!
https://www.sltrib.com/news/2019/10/30/utah-girls-win-national/
https://www.sltrib.com/news/2019/12/25/salt-lake-tribune-readers/
2019 Diocesan Science Fair Participant Madeline Joklik-McLeod, from Juan Diego Catholic High School, was chosen as a Grand Prize Winner at the University of Utah Science and Engineering Fair, and advanced to compete at the Intel International Science and Engineering Fair in Phoenix, AZ.
http://icatholic.dioslc.org/article/juan-diego-senior-takes-top-state-science-fair-prize-87912430
Past Fair Results:
Past Fair Results:
2025 Diocesan Science and Engineering Fair Results can be viewed here: 29th Annual DSEF Awards List.
2024 Diocesan Science and Engineering Fair Results can be viewed here: 28th Annual DSEF Awards List, and Photos can be viewed here: Diocesan Science Fair Photo Album 2024.
2023 Diocesan Science and Engineering Fair Results can be viewed here: 27th Annual DSEF Awards List, and Photos can be viewed here: Diocesan Science Fair Photo Album 2023.
Results of the 2022 Diocesan Science and Engineering Fair, sponsored by the Knights of Columbus, can be viewed here: 2022, 26th Annual DSEF Awards List
Results of the 2021 Diocesan Science and Engineering Fair, which took place virtually: 2021 25th Annual DSEF (Virtual) Fair Awards List
Results of the 2020 Diocesan Science and Engineering Fair, sponsored by the Knights of Columbus, can be viewed here: 2020, 24th Annual DSEF Awards List
Photos of the 2020 science fair can be viewed here: Diocesan Science Fair Photo Album
The Diocesan Science and Engineering Fair is made possible by generous support from our Utah Knights of Columbus. For information about the Utah State Council Knights of Columbus, please visit their website:
The Diocesan Science and Engineering Fair is made possible by generous support from our Utah Knights of Columbus. For information about the Utah State Council Knights of Columbus, please visit their website:
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