In this Science upd8 activity students use their understanding of simple circuits, electricity and magnetism to diagnose and fix problems with the running of a magnetic train in a theme park.

This resource, from Siemens UK, encourages students to appreciate the importance of clean water and the problems that may arise in the absence of it. Students consider soluble and insoluble pollutants and methods of filtration. They then explore contamination by microorganisms, water-borne diseases and the...