Scientific phenomena are part of children's everyday lives. Since PISA, scientific education has become increasingly important, even in elementary school. At the University of Flensburg, the advanced training concept "Experiment makes you smart" was developed with the aim of further training elementary teachers in the field of natural sciences and technology in order to be able to competently accompany research-based experimentation in day-care centers. This study, as an accepted dissertation at the University of Flensburg, investigates the extent to which...