International Junior Science Olympiad (IJSO) – The International Junior Science Olympiad (IJSO) is an annual individual and team competition in the Natural Sciences for students who are under sixteen years old on 31st December of the competition year. IJSO has been established in recognition of the significance of the Natural Sciences in the general education of young people and in all aspects of their lives. It is a purely educational event.

Latest – Online Registration has been started, Candidates can Register through the link provided below.


  • To promote and reward the pursuit of excellence in scientific endeavour.
  • To challenge, stimulate and encourage gifted students to further develop their talents in Natural Sciences.
  • To create friendship and relationships among students around the world from an early age.

Notice regarding the IJSO 2017 competition in the Netherlands

The IJSO Competition in the Netherlands will be limited to a maximum of 50 participating countries due to the constraints of the organisation especially the hotel accommodation. Members are advised to register early to avoid disappointment via this IJSO website.

14th International Junior Science Olympiad – IJSO 2017

IJSO is held in the first week of December of every year, in different countries. Currently, around 50 member countries participate per annum.

Another important objective of the Olympiads is for young people to experience different cultures and to bring about interactions between students from across the world. Thus, the Olympiads have a potential to promote global peace and understanding.

IJSO 2017 will be conducted on 3 Dec – 12 Dec 2017 at Netherlands

IJSO Question Papers and Solutions

2016 Question Papers and Solutions

MCQ Theory Experiment

2015 Question Papers and Solutions

MCQ Theory Experiment

IJSO Registration

Only those countries, which have participated in one or more earlier IJSOs may register using the login ID and password sent to the IB member.

If you want to participate, press below link to Register:

Last date for registration is 31 August 2017.

Note: The letter needed for your visa application, will be send to the country coordinator.

If your country is planning to participate for the first time or if your country has not been sent the login ID and password, please contact here for receiving the login ID and password.

IJSO Syllabus

The syllabus of the International Junior Science Olympiad (IJSO) lists the skills and areas of knowledge the participants should be familiar with for this competition.

It thus serves as a guideline for developing tasks to the Scientific Committees of the hosting countries but should also help the leaders of the participating countries to effectively train their students for this competition.

In order to keep the syllabus up to date it should be revalidated every three years and if necessary shortened or expanded.

Structure and content of the syllabus

The International Junior Science Olympiad is a general science competition. The IJSO syllabus is therefore not strictly divided into the disciplines biology, chemistry and physics but rather intends to highlight basic general concepts in science.

This conceptual approach is also meant to encourage the development of problems of interdisciplinary content and relevance.

The content of the syllabus is based on

  • The former syllabus of the IJSO,
  • The syllabi for students up to 15 years of age in the participating countries,
  • The problems given at the IJSO until the 5th IJSO in 2008.

Candidates can check the complete syllabus here-

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