This video features the details about the International Junior Science Olympiad (IJSO) which is one of the International Official Olympiad. International Official Olympiads are conducted in Chemistry, Physics, Biology, Maths, Astronomy, Informatics, Earth science fields. International Official Olympiads are recognized by Government of various countries.so these Olympiads can be called World’s biggest Olympiad. IJSO is conducted for the students up to Secondary level. In INDIA, It is conducted & mentored by Homi Bhabha Center for Science Education Mumbai.