Based on the Science Programme of Study, this booklet covers all the main concepts required for Key Stage 4 and GCSE examinations. The information is grouped into the Strands given in the revised National Curriculum and is presented in three bands covering Levels 4-6, Levels 7 and 8 and Levels 9 and 10. Pupils are encouraged to: underline key phrases; list the meanings of words in bold; match statements; complete diagrams; perform calculations; and give extra examples.