Help pupils find out about access to water and build their own filters. Working in teams, pupils explore issues around access to water and cleaning water around the world. This is followed by a hands-on activity where they build their own water filters with different sets of resources depending on which country they represent. The Water for the World Activity was designed to be delivered by university engineering students as a schools' outreach activity but has been adapted so teachers can download and deliver directly in the classroom. They are designed for both primary and secondary students and are suited to a 60 or 90 minute session, but could be extended. A perfect activity for a science or STEM club.