IJSO — International Junior Science Olympiad
The junior science world final, and the natural first target for a strong younger student.
- Natural Sciences
- Engineering
- Medicine & Health
- Who can enter
- Age 15 or under on 31 December of the competition year
- What it costs
- Free for you: entry is through your national junior science olympiad, and team costs are covered by the host and your national organiser.
- When it closes
- Aug 31, 2026 · Registration open August 1-31, 2026
Sending this to someone sends the four facts above, not just a name. They will see who can enter and what it costs before they decide.