Hello, 

The International Olympiad of Science, a test of competence and proficiency in Science, is held annually at the National and International levels, based on syllabus prescribed by CBSE/ ICSE and the State Boards. Apart from syllabus, a part of test paper is based on the Applied Science. Detailed syllabus with sample question paper is provided along with this Information Booklet. Please refer the books published by Silverzone for the preparation of iOS. SSE recommends the competition for each and every student who is Studying Science as their subject in the school.

Regarding the complete information about the olympiads, please go through the following link. 

https://www.silverzone.org/SubjectInfo/ios

Hope this helps....