The International Olympiad of Science, an exam which is known for its competence and knowledge in Science, is held every year at the National and International standards, it is based on the syllabus of CBSE/ICSE and the State Boards. Apart from syllabus, a part of exam paper is based on the Applied Science. We would suggest you to refer the books published by SilverZone for a good preparation of IOS.
For more information like Syllabus, Marking Scheme, Sample Papers & Preparation Materials, Click here.
