International Biology Olympiad Papers (IBO) (1990-2013) [Past Olympiad Papers]

IBO is one of the international science Olympiads. The first International Biology Olympiad took place at Olomouc, Czechoslovakia in 1990. The latest edition of IBO took place recently at Aarhus, Denmark.

All participating countries send the four winners of their National Biology Olympiad to the IBO, accompanied by usually one team leader and two observers/jurors. 

The competition itself is composed of a theoretical and practical element. The theory exams cover a wide range of Biology: Cell Biology, Molecular Biology, Plant Anatomy and Physiology, Animal Anatomy and Physiology, Ethology, Genetics and Evolution, Ecology, and Biosystematics. The marks are scaled so that the theory and practical components each have a weighting of about fifty percent.

I've compiled all the past IBO problems (Some also contain solutions). You can download the compiled version here.
 
Credit: International Biology Olympiad (IBO).

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IBO Papers (1990-2013)

British Olympiad in Astronomy & Astrophysics (BAAO) 2015 Papers [Past Olympiad Papers]

British Olympiad in Astronomy and Astrophysics.

Problems and Solutions 2015. 

The British Olympiad in Astronomy and Astronomy took place for the very first time in 2015. On its debut participation at 9th IOAA, the UK team secured two silver medals (three students represented UK). Have a look at the selection test papers of BAAO 2015.

Science Olympiad Blog is proudly sponsored by Adroit Education - a Boutique College Consulting Firm that aides the gifted STEM Students to become the Next-Generation Researchers, Scholars, and Innovators by attending the finest American Universities.