2023 Regional Science & Engineering Fair (RSEF)  

The 41st Annual Loudoun County Regional Science & Engineering Fair, RSEF, will be an in-person event in 2023. Category, Special Awards, and Finalist Judging will be held in-person on Wednesday, March 22, 2023 at Rock Ridge High School. The RSEF Awards Ceremony will be held at Rock Ridge High School on Thursday, March 23 at 7:00 pm. Virtual portions of the fair will be hosted on the LCPS Regional Science & Engineering Fair website. 

Congratulations to all of our RSEF participants!

Please visit the

2023 RSEF Google Site to view the student projects

2023 RSEF Grand and Category Awards

2023 RSEF Special Awards

The purpose of our fair is 

• to stimulate student interest in science, technology, engineering, and mathematics (STEM)
• to encourage students to engage in research in STEM fields.
• to provide students opportunities to present research to STEM professionals and the community, and
• to give public recognition to students for their work.

The 41st Annual LCPS Regional Science & Engineering Fair (RSEF) will involve over 300 high school students from Loudoun County Public Schools. Students are selected to participate in the RSEF by their schools. This year the RSEF categories include:  

Animal Sciences, Behavioral and Social Sciences, Biochemistry, Biomedical and Health Sciences, Biomedical Engineering, Cellular and Molecular Biology, Chemistry, Computational Biology and Bioinformatics, Earth and Environmental Sciences, Embedded Systems, Energy: Sustainable Materials and Design, Engineering Mechanics, Environmental Engineering, Materials Science, Mathematics, Microbiology, Physics and Astronomy, Plant Sciences, Robotics and Intelligent Machines, Systems Software, and Translational Medical Science.