Thank all participants for their active participation in the poster session and voting. 

Winners of poster competitions:
 
1st prize
 
Rivero, A. and Müller, C.G., More Than 20 Uses Of A Didactic Tool For The Teaching Of The Periodic Table And Its Properties
 
2nd prize ex aequo
 
Marina Stojanovska, Bojan Šoptrajanov, Vladimir M. Petruševski, Molecules Are Not Substances, Substances Are Not Molecules
 
Sabine Streller, Claus Bolte, Development of Interests in Science – a Longitudinal Study with Primary School Children