Chemistry is often called 'the central science' because it connects the physical sciences, including physics, with the life sciences and applied sciences, such as medicine and engineering. As well as knowledge of the chemical content itself, the subject develops many important cognitive skills, such as understanding abstract concepts, analysing data, problem identification and solving, numerical analysis, organising recall, and logical argument, as well as the skills of critical thinking. Chemistry is a 'facilitating subject', as it is one of the subjects appearing most often in university entry requirements. Chemistry can be taken with any combination of subjects but there are particular benefits to studying Mathematics and Physics or Biology alongside Chemistry. These subjects complement each other and studying one can reinforce ideas central to the others. The A level Chemistry course is fairly evenly divided between the study of physical chemistry, inorganic chemistry and organic chemistry. The course is quite up-to-date and includes units on modern analytical techniques and topical issues in chemistry such as polymer production and disposal, alternative energies, and biochemistry. Practical work lies at the heart of the sciences and this course provides numerous opportunities to use practical experiences to link theory to reality and equip students with essential practical skills. Students who satisfy the practical requirements of the course will be awarded a separate “Practical Endorsement” alongside their A level grade.