Throughout Europe, we are piloting our COSMOS approach to science education for open schooling. Teams from primary and secondary schools are designing and getting ready to implement their COSMOS projects. In Antwerp (Belgium), the teachers from the CLW Borgerhout and CLW Merksem visited KdG University College to learn about how socio-scientific inquiry based learning (SSIBL) can help them to connect their science education projects to communities around the school. In a few weeks they will support their students to study what affects the quality of tap water and how it can be sustainably managed at school and at home. Through the COSMOS approach students will explore how they themselves can contribute to a healthy and sustainable environment.