2018 Energy
2017 Sustainability
2016 Science in sport
2015 Light
2014 Crystals
2013 Water for thought
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2012 Astronomy & Time: The Mayan Legacy
2011 Chemistry
2010 Biodiversity
2009 Optics Laima Servaité, Lietuvos Gamtos Mokslų Olimpiadų Asociacija, Lithuania
2008 Solar Energy Anna-Maria Antonova Petrova, Sports school “G. Benkovski”, Varna, Bulgaria
2007 The Tops Christian Vandercammen, Jeunesses Scientifiques de Belgique, Belgium
2006 Water Fountains Tatiana Belenova, Science Club for Kids, Russia
2005 Water Rockets IES Guindavols, lleida, Spain