Pure Science subjects (Physics, Chemistry and Biology) include the School-based Science Practical Assessment (SPA) for school candidates. It assesses candidates' competence in science practical skills over an appropriate period of time that the candidates is offering the subject, and forms 20% of the overall mark for the subject. While the questions are set by the Ministry of Education, the assessment is scheduled, carried out and marked by the school before submitting the scripts to the MOE. The scores for the assessment are kept confidential and are never disclosed to the candidates. The assessment is grouped into three skill sets:
A Level students often apply to universities before they have taken their final exams, with applications administered centrally through UCAS . British universities (including Scottish universities, which receive many applicants taking A Levels) consider GCSEs, AS-level results, predicted A Level results, and extracurricular accomplishments when deciding whether applicants should be made an offer through UCAS. These offers may be 'unconditional', guaranteeing a place regardless of performance in A2 examinations. Far more often, the offers are conditional on A level grades, and become void should the student fail to achieve the marks expected by the university (for example, conditional offer of three A Levels at grades B-B-C).  Universities may specify which subjects they wish these grades to be in (for example, conditional offer of grades A-A-B with a grade A in Mathematics).  The offer may include additional requirements, such as attaining a particular grade in the Sixth Term Examination Paper . The university is obliged to accept the candidate if the conditions are met, but is not obliged to reject a candidate who misses the requirements. Leniency may in particular be shown if the candidate narrowly misses grades.