This project will present the work for 2 years of the Erasmus+ project Small Scientists Across Europe. Today's little students have a well-developed imagination that should be used in order to become future scientists. The dynamic of our time current requires innovative learning that is why we plan to adapt science, which is a highly abstract subject to the preschool curriculum, through play and experiments, not only using definitions and theory, and to apply this knowledge in finding ways to keep the environment clean and healthy.