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What is the Let's Talk Science Challenge?

The Let's Talk Science Challenge is a free team-based STEM/science competition that encourages students in Grades 6-8 to learn about new STEM topics and show what they learn in an exciting, supportive environment. The Grand Finale competition with a quiz and engineering challenge is held in person at several locations across Canada, and online for everyone. Online learning resources and practice events keep the excitement going as you gear up to the big day.

Preparation for the competition is important. Students can work in teams or individually to explore STEM concepts provided in the Study Handbook prior to the competition. Let’s Talk Science also offers practice quizzes and design and build challenges beginning in February.

Students with arms raised, cheering at Let’s Talk Science Challenge quiz competition.

Why participate in the Let's Talk Science Challenge?

The Let's Talk Science Challenge

  • Provides an outlet for students who are not being challenged by the curriculum
  • Inspires students to consider future education in STEM and potential STEM careers
  • Enriches curriculum in eight subject areas
  • Emphasizes team collaboration, cooperative learning and problem-solving skills
  • A great opportunity to meet role models from post-secondary campuses near you!


Where can I compete?

In-person Grand Finale competitions are being offered in the following locations this year:

  • Carleton University
  • Greater Vancouver Area
  • McMaster University
  • Memorial University, Grenfell Campus
  • Memorial University, St. John’s campus
  • Montréal (English and French events)
  • Queen's University
  • Université de Moncton, Moncton campus (French event)
  • University of Manitoba
  • University of Toronto St. George
  • University of Windsor

Don't see a competition in your area, or the one near you is full? Join one of our virtual Grand Finale competitions and compete with students from across the country! 

Registration is closed for this competition season. Registration for the Challenge 2025 will open in November. 

About the Let's Talk Science Challenge


Educator Portal

Study Handbook

The Let’s Talk Science Challenge Study Handbook has everything students need to study and learn to successfully answer questions in the Ultimate Quiz, and to be able to understand and solve the Engineering Challenge.

The 2024 Study Handbook is available now!


10 years Amgen Canada
10 years The Government of Canada
10 years Hibernia
10 years

The Mitchell and Kathryn Baran Family Foundation

5 years Rio Tinto
10 years Trottier Family Foundation

Thank you to our 2024 national supporters

Seaspan Shipyards
Spin Master
Best Buy