International Olympiad of Science (IOS)

The International Olympiad of Science (IOS) is an annual multi-level science competition organised by the SilverZone Foundation for school students. It tests school-board science topics (CBSE, ICSE and state boards) across classes 1–12 and provides participants with detailed performance reports. High-performing students qualify for higher levels (Level 2 and Level 3) according to published ranking and score thresholds. The programme aims to develop analytical and problem-solving skills in young science students.

Participants receive a detailed performance report after the test and may qualify for higher competition levels based on results.

Level 1 is open to all students in Classes 1 through 12. Level 2 is available to Level 1 participants who rank in the top 1,000 and scored at least 50% (with a specific exception for Grade 1); Level 3 is for students who competed in Level 2 and ranked first in their grade levels (6th–12th).

Registration (last date provided); candidates register for the exam through the organisers before the registration deadline.