GCSE Combined Science Chemistry Revision: OCR Higher Notes

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GCSE OCR Higher Combined Science Chemistry

GCSE Combined Science Chemistry revision for OCR Higher tier: free notes across 6 topics, each split into subtopics and lessons.

6 topics and 177 lessons for GCSE OCR Higher Combined Science Chemistry. Each topic lists its subtopics so you can go straight to the part you need.

Topics

177

Lessons

Revise Right Mocks '26

OCR A GCSE Combined Science Chemistry mock draft, 26–31 Oct. Draft coverage: Combined Science Chemistry Paper 9 (Higher tier). Reviewed for an original-practice sitting; check student availability before registering. Marking and results will follow later, after separate approval. Eligible new accounts receive a five-day Pro trial when signup email verification completes. Previous trials keep their original expiry. After expiry, new papers need Pro unless you have an explicitly confirmed free sitting offer for this event. That offer adds no Pro time or AI learning. Saved attempts and released results remain readable. No card or automatic charge.

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GCSE OCR Higher Combined Science Chemistry topics

Every topic in this course, with the subtopics inside each one.

Topics and what they cover

Topic C1: Particles: 15 lessons: The particle model, Atomic structure
Topic C2: Elements, compounds and mixtures: 38 lessons: Purity and separating mixtures, Bonding, Properties of materials
Topic C3: Chemical reactions: 46 lessons: Introducing chemical reactions, Energetics, Types of chemical reactions, Electrolysis
Topic C4: Predicting and identifying reactions and products: 14 lessons: Predicting chemical reactions
Topic C5: Monitoring and controlling chemical reactions: 21 lessons: Controlling reactions, Equilibria
Topic C6: Global challenges: 43 lessons: Improving processes and products, Interpreting and interacting with earth systems

Other courses and past papers

Not your exam board or tier? The Combined Science Chemistry page lists every course we cover.

All Combined Science Chemistry courses OCR GCSE Combined Science Chemistry past papers Pricing

Frequently asked questions

How do I know GCSE OCR Higher Combined Science Chemistry is my course?

Check the level, exam board and tier with your teacher, or look at the front of a past paper you have been given. Content differs between boards, so it is worth getting this right first.

Where should I start?

Start with the topic you find hardest, or the one your next test is on. Read a lesson, then close it and write down what you remember before moving on.

All Revision Notes Past Papers Pricing