Media type: E-Article Title: Understanding Chemical Change in Primary Education: The Effect of Two Cognitive Variables Contributor: Stamovlasis, Dimitrios; Papageorgiou, George Published: Informa UK Limited, 2012 Published in: Journal of Science Teacher Education, 23 (2012) 2, Seite 177-197 Language: English DOI: 10.1007/s10972-011-9255-y ISSN: 1046-560X; 1573-1847 Origination: Footnote: