popularization of science. chemical fair. science by gameHolá, Oľga, 1947- Natural Science in our life Today and Tomorrow. In: Krakow : Pedagogical University Krakow, 2012. -- 5th International Conference research in Didactics of the Sciences - DidSci, Krakow, June 27-29 2012 : Book of Abstracts. -- s.52. -- 978-83-7271-734-4.