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4-H Canada Science Fair

Do you have a curiosity about the world around you?

The 4-H Canada Science Fair is the opportunity for you to explore, experiment, and discover! As part of our 4-H Canada Science Fair, 4-H youth plan, research, complete, and submit science projects - independently or as pairs - to be judged virtually in the hopes of moving to our in-person round and ultimately to the Canada-Wide Science Fair. 

The 4-H Canada Science Fair is open to 4-H’ers in grades 7 to 12 or enrolled in CÉGEP.

Registration for the 2022-23 4-H Canada Science Fair opens Sept. 1, 2022, and closes Jan. 27, 2023 

Simply fill out a few simple questions, and you’ll be officially registered and ready to go. Then stay tuned for further support and info from 4-H Canada on the web, through our eblast, and over social media on how to get your science fair project off to a great start! 

How does the 4-H Canada Science Fair work?

Either by yourself or with another 4-H’er, you’ll explore a topic of your choice to create your very own 4-H Canada Science Fair project. You’ll have the opportunity to Learn To Do By Doing (and have a ton of fun!) while planning, researching, building, experimenting, testing, and analyzing your science fair project. 

Virtual Round

You’ll develop and submit your project by Jan. 27, 2023 as part of the virtual round. Your project then will be judged virtually between Jan. 30 and Feb. 10, 2023. 

Second Round

The top projects from the virtual round will then move on to the in-person round in Alberta from March 9-12, 2023, where four winning projects will be selected. 

Canada-Wide Science Fair

The four 4-H Canada Science Fair winners and their projects will be entered into the Canada-Wide Science Fair where they will compete against the best and the brightest from across Canada! The 2023 Canada-Wide Science Fair is happening in Edmonton, AB from May 14–19, 2023.  

Developing your 4-H Canada Science Fair project

What interests you? Is there something you would love to test or invent? Do you have a question that you want to explore? Whatever it is, the sky is the limit for your 4-H Canada Science Fair project. 

Additional resources to download:

You have access to resources and support 4-H Canada.  Email us if you need help, or if you have any questions about your 4-H Canada Science Fair project. 

Finding a mentor to help you with your project

You can use a mentor to help you develop your science fair project! A mentor can be anyone who works to support you as you develop your 4-H Canada Science Fair project. Whether it’s a teacher, a parent, a 4-H club leader, a senior 4-H member, or a professional working in Science & Technology, a mentor can help you with any potential challenges you may face while initiating and completing your project. 

Mentors could help you with things like: 

  • Securing workspace (like access to a science lab) 
  • Helping you meet local experts in the field of your project 
  • Reviewing your work, asking questions, or encouraging you  

Whether you are a 4-H Canada member or a possible mentor, make sure to complete the Member-Mentor Code of Conduct, found within the Mentorship Package below. 

Download the Mentorship Package to access a mentor invitation template, the Mentor-Member Code of Conduct, and information for teachers. 

Looking for inspiration?

Take a look back at past 4-H Canada Science Fairs and projects:

2022 4-H Canada Science Fair
2021 4-H Canada Science Fair
2020 4-H Canada Science Fair
2019 4-H Canada Science Fair
2018 4-H Canada Science Fair

2017 4-H Canada Science Fair
2016 4-H Canada Science Fair

Meet the 2022 Winners and Finalists

Get to know the winners, finalists, and projects from the 2022 4-H Canada Science Fair

We're looking for Science Fair judges! 

Are you a leader in science, technology, engineering, agriculture, or mathematics? Share your expertise with 4-H youth and help build another generation of science enthusiasts! If you are interested in judging the 4-H Canada Science Fair, check out our judging opportunities.


Thank you to our partners

Science & Technology Pillar Partner

Bayer CropScience Canada

Government Support

Funded by the Government of Canada

Resource Development Partner & Host of the Canada-Wide Science Fair

Youth Science Canada