The project involves STEM and Physical Education using a PBL approach. During PE lessons, students will discover that in sport there is Science and during their STEM lessons they will understand the laws behind some behaviours we consider normal in sport situations. This will help them to improve their performance both in sport and STEM, understanding why and where they make mistakes, optimizing their energies with the most appropriate movements. Students will participate in exchanges and will run together in trails then they will apply Maths, Physics and Chemistry to the data collected during the race working in international groups.