The involvement of infants in the natural sciences is considered necessary, because young children seem to form very early on the first ideas, interpretations, theories about the concepts and phenomena of the physical world and they are therefore able to approach relevant issues at a first level. The purpose of this paper is to design and evaluate activities aimed at investigating preterm infants' perceptions of concepts that define the environmental dimension of light and comparing them with the new perceptions that infants form after teaching intervention. The method followed is the project...