Regional Science Fair · Our 50th fair

United Counties Science Fair

Celebrating curiosity and discovery for students across Cornwall, Stormont, Dundas & Glengarry and Akwesasne.

Saturday, April 3, 2027

St. Lawrence Secondary School · 1450 Second St E, Cornwall, ON

Registering is free. Students, teachers and judges get an account; we'll email you a code to confirm your address, no password needed.

Announcements

Welcome to our new website, and to the 50th United Counties Science Fair!

September 19, 2026

Welcome to the new United Counties Science Fair website. Students, teachers and judges can now sign up and manage everything in one place, and project registration and the fair-day schedule are right here on the site.

The 50th United Counties Science Fair will be held on Saturday, April 3, 2027 at St. Lawrence Secondary School in Cornwall. We would love to see you there. Watch this page for updates as the fair gets closer.

Students

Learn the rules, divisions, report specs, and fair-day schedule — then register your exhibit in the portal.

Student information

Teachers

Deadlines, classroom guidance, and teacher portal for project safety approval.

Teacher information

Judges

Help recognize outstanding young scientists. Sign up in one short form and tell us your subject strengths.

Judging information

Science on the Wall

Grades 1–5 can take part through poster-style exhibits that celebrate early STEM curiosity. See program details and how posters fit into fair day.

About Science on the Wall

Contact

Questions about eligibility, registration, or volunteering?

info@ucsfair.org

343-370-7469

More about us and useful links are on the About page.

Fair-day schedule and timeline live on the students page.