International Science Olympiad

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The International Science Olympiads are a group of worldwide annual competitions in various areas of the formal sciences, natural sciences, and social sciences. The competitions are designed for the 4-6 best high school students from each participating country selected through internal National Science Olympiads, with the exception of the IOL, which allows two teams per country, the IOI, which allows two teams from the hosting country, and the IJSO, which is designed for junior secondary students. Early editions of the Olympiads were limited to the Eastern Bloc, but later they gradually spread to other countries.[1]


The Olympiads themselves are separate competitions each with its own organizing body, even though they are loosely grouped together as "ISOs". The aims of each ISO are to promote a career in science; to challenge the brightest students from around the world; and to compare the various teaching systems of each country. Although the competitions are aimed for secondary school pupils, the standards of the exams are extremely high.[citation needed]

International Science Olympiads[edit]

Science Olympiads are international student competitions. There are 12 commonly recognized International Science Olympiads:

# Science Symbol Year Host Country (For 2023) Host Country (For 2024)
1 International Mathematical Olympiad IMO since 1959  Japan  United Kingdom
2 International Physics Olympiad IPhO since 1967  Japan  Iran
3 International Chemistry Olympiad IChO since 1968   Switzerland  Saudi Arabia
4 International Olympiad in Informatics IOI since 1989  Hungary  Egypt
5 International Biology Olympiad IBO since 1990  UAE  Kazakhstan
6 International Philosophy Olympiad IPO since 1993  Greece  Finland
7 International Astronomy Olympiad IAO since 1996  China
8 International Geography Olympiad iGeo since 1996  Indonesia  Ireland
9 International Linguistics Olympiad IOL since 2003  Bulgaria  Brazil
10 International Junior Science Olympiad IJSO since 2004  Thailand  Romania
11 International Earth Science Olympiad IESO since 2007 Online  China
12 International Olympiad on Astronomy and Astrophysics IOAA since 2007  Poland  Brazil

See also[edit]


  1. ^ "THE EÖTVÖS COMPETITION". Archived from the original on 2017-04-21. Retrieved 2016-06-06.

External links[edit]