Science

Planet Science online revision resources: http://www.planet-science.com/categories/parentsteachers/science-resources/2012/04/online-gcse-revision-resources-.aspx

GCSE science for Chemistry and Physics: http://www.gcsescience.com/index.html

AQA past science papers: http://www.aqa.org.uk/subjects/science/gcse/science-a-4405/past-papers-and-mark-schemes

Revision world: http://revisionworld.co.uk/gcse-revision

Revision world science: http://revisionworld.co.uk/gcse-revision/science

BBC Bitesize science exam boards topics: http://www.bbc.co.uk/schools/gcsebitesize/science/

CGP books: https://www.cgpbooks.co.uk/OverseasSchool 

Ri channel - video collection for all areas of science: 

http://www.richannel.org/videos