There are six teaching topics for each of the sciences and a practical skills topic:
* Indicates the inclusion of synoptic assessment.
Students must complete either foundation tier (papers 1, 2, 3, 4, 5 and 6) or higher tier (papers 7, 8, 9, 10, 11 or 12) to be awarded the OCR GCSE (9-1) in Combined Science A (Gateway Science).
There are 18 teaching topics in total, six for each of physics, chemistry and biology, plus a practical skills topic.
In all three sciences, students develop their understanding of how scientific principles and concepts help describe complex and diverse natural phenomena in terms of a small number of key ideas. They also develop relevant practical skills.
The six teaching topics are further subdivided:
This topic covers the practical skills for all of the sciences.