The second edition of the Twenty First Century Science resources has been developed in partnership with OCR the University of York Science Education Group & the Nuffield Foundation. They have been fully updated to match the new 2011 specifications. The second edition builds on the success of this hugely popular suite of resources. With extensive feedback from schools & teachers using the resources the new suite provides ideal support for the 2011 specifications. There is now more help with exam preparation & assessment throughout the course & more differentiation to aid learning for all abilities. There is greater customisability using the latest digital support & its packed with new scientific contexts reflecting the latest research & ideas. The GCSE Additional Science Revision Guide contains activities to help students reach their true potential. It identifies areas that require further work & also contains concise fact banks & practice GCSE-style questions.