In the last 30 years, 4 distinct theoretical approaches have been described for early childhood science education. The approaches are, empiricist, Piagetian, socio-cognitive and socio-cultural. Drawing on the differences among these approaches regarding the theoretical framework adopted in teaching, the role that is assigned to the teacher during the activity and the actions that are expected from the children, we aimed to serve 2 purposes with this research. Firstly, to elicit the in-service pre-school teachers' beliefs about teaching practices for natural sciences and to record the approaches that these beliefs match. To fulfil this purpose, a new instrument was developed. Secondly, to examine the instrument's validity and reliability. The participants in the study were 94 pre-school teachers who served in public schools in 2 prefectures in Greece. Research findings suggest that pre-school teachers tend to state that they mainly adopt practices that fit the empiricist approach while practices that fit the socio-cognitive approach are not used so often. Finally, they seem to rarely follow practices that fit the socio-cultural and Piagetian approaches.