1) SQA Highers: AAAA-ABBB or more if two sittings, to include two of Biology*, Chemistry*, Geography, Geology, Mathematics*, Physics*; with Standard Grade Mathematics at Grade 2 (*include at least one).
2) GCE A Levels: AAA-ABBB in one sitting, to include one of Biology, Chemistry, Geography, Geology, Mathematics, Physics; with GCSE Mathematics at Grade B.
3) IB: 37-32 points overall and award of IB Diploma to include two of Biology*, Chemistry*, Geology, Geography, Mathematics* and Physics* (*include at least one) at HL Grade 5 plus one subject at HL Grade 5.