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The EOES (European Olympiad of Experimental Science) is an annually recurring science olympiad for young people from the European Union, organised by a member country of EOES NPO.

More than 20 countries each send two teams of three participants. These teams have to carry out two assignments,
with an emphasis on skills in the subjects biology, chemistry and physics.

In this contest,
team spirit takes precedence over individual performance.


The aim of the contest is to give students the opportunity to feel like 'real' researchers and to measure their scientific skills against those of the other participants.

In university or high school labs
they have to investigate a certain phenomenon in an interdisciplinary way through various experiments.

This phenomenon itself does not necessarily belong to the curriculum of secondary education. It often links up with ongoing scientific research.


The EOES offers participants the opportunity to exchange experiences and discuss educational structures in their country.

Lifelong friendships are often forged during the Olympiad and form the foundation of an important European scientific network.

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Something for you?

We are sure about that! But just as a participant in the Olympic Games must meet a series of selection criteria, you too must go through a selection procedure and meet the following conditions:

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You may only turn 17 during the year of the EOES (or later). A participant in the EOES can therefore never be older than 17 years.
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You must be selected through a national selection competition.

The Olympiad week

The event lasts a week and takes place during spring. In addition to the actual competition - which covers two half days - a whole series of socio-cultural activities is also provided.

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The actual contest

At the beginning of the test you will receive a text with assignments about the phenomenon that you have to investigate experimentally. Where necessary, this text provides you with the necessary scientific background.
You are expected to be able to process this text quickly and interpret it accurately.

Then you go to work. Within the team, division of tasks, team spirit and organization are essential to bring the assignments to a successful conclusion.

The emphasis of this Olympiad is not so much on theoretical knowledge (though this is important too), but rather on skills such as accurately
  • processing information,
  • manipulating equipment,
  • performing and recording measurements.

You are expected to be able to process measurements arithmetically and graphically, see relationships, interpret graphs and make decisions. All this in a time span of 4 hours.

Setbacks in experiments are also part of this. This is how you experience what it is like to be a real scientist ...