Here are a few popular STEM robotics kits available in Canada:

1. Lego Mindstorms EV3: This kit is designed for children aged 10 and up and includes a range of sensors, motors, and building elements to construct and program robots.

2. LittleBits Code Kit: This kit is suitable for children aged 8 and up and teaches coding concepts through building and programming robots.

3. Ozobot Bit: This kit is designed for children aged 8 and up and teaches coding basics through fun and interactive activities.

4. Makeblock: This brand offers a range of robotic kits and modules for children aged 8 and up, including a mBot kit, which can be used to construct and program robots.

5. Kano Computer Kit: This kit is designed for children aged 6 and up and teaches coding and computer science concepts through hands-on activities.

These are just a few examples of STEM robotics kits available in Canada. When choosing a kit, consider the child's age, interest, and previous experience with robotics and coding.