eng Science and Education Publishing World Journal of Chemical Education 2375-1657 2023-08-22 11 3 74 79 10.12691/wjce-11-3-9 WJCE20231139 article Fascinating school experiments with fluorescent dyes Matthias Ducci ducci@ph-karlsruhe.de 1 Department of Chemistry, University of Education Karlsruhe, Karlsruhe, Germany The world is colourful ¨C at least from our perspective as humans. But where does colour come from? The present paper addresses this question and, in its first part, presents new experiments on additive colour mixing with fluorescent solutions. In addition, further school experiments with impressive fluorescence effects are described. http://pubs.sciepub.com/wjce/11/3/9/wjce-11-3-9.pdf fluorescence additive colour mixing fountain experiment invisible ink alginate beads