Virtual 2021

Date May 17-21, 2021
Location Virtual (Ottawa), Ontario
Countdown 0 Days to go

Become a CWSF STEM Expo Exhibitor

Canada’s largest youth STEM event

On the last two days of the weeklong Canada-Wide Science Fair (CWSF), Youth Science Canada hosts the country’s largest youth science, technology, engineering and mathematics (STEM) event—CWSF STEM Expo.

STEM Expo is designed for visiting students and teachers (grades 5-11) and features hands-on interactive activities including experimenting, making, coding, games, robotics, Indigenous knowledge, inspiring presentations, exciting demonstrations and more by companies, organizations, agencies, institutions, museums and other STEM-related organizations.

Free admission for visitors from May 29-30.

See the STEM Expo Prospectus for exhibit details.

Register today!

Click here to access previous STEM Expo Directories.


This is one of the most important annual events in Canada, bringing together thousands of kids interested and engaged in STEM. For Science Odyssey, it is an honour to be partnering with YSC and CWSF, and together contribute to foster a strong science culture in Canada.

José-Manuel Gil, Science Odyssey – Powered by NSERC

Our Power of Ideas team couldn’t say enough about what an amazing experience it was interacting with the students. They were so engaged.

Perimeter Institute for Theoretical Physics

Wonderful interaction with students and teachers. 

Nicky Middleton – Brainspace

Well planned and well delivered.

Antoine Garwah – Science Timmins