The national science Olympiad is a competition for students who are 16 years old or younger. In two rounds they are testedabout their knowledge and their practical skills in biology, chemistry and physics. After the first round, 8 teams (formed by 3students) from different schools are selected for the final round. The two teams with the best scores in these round willrepresent Luxembourg at the European Union Science Olympiad (EUSO). Last year over 1400 students did participate atthe sciences Olympiad.