What It Is

Spaced repetition means reviewing material at increasing intervals. For OCR Combined Science, with six papers across three disciplines, cramming is not an option. You need a structured plan that revisits each topic multiple times before the exam.

How to Build a Science Revision Schedule

1. 1
   List all topics — Biology Paper 1, Biology Paper 2, Chemistry Paper 1, etc. Each paper has its own set of topics.
2. 2
   Schedule first study — Start with the topics you find hardest. Assign each a first revision date.
3. 3
   Use the 1-3-7-14-28 pattern — Review each topic after 1 day, then 3 days, then 1 week, then 2 weeks, then 4 weeks.
4. 4
   Keep sessions short — 20–30 minutes per topic. Use retrieval practice at each review.
5. 5
   Interleave subjects — Mix biology, chemistry, and physics in one session rather than doing blocks of one subject.