OCR A-Level Biology, Chemistry and Physics: Complete Course Suite Now Available
OCR A-Level Biology, Chemistry and Physics: Complete Course Suite Now Available
LearningBro now offers complete coverage of all three OCR A-Level Sciences. Whether you are studying Biology A (H420), Chemistry A (H432) or Physics A (H556), every module of the specification is now available in interactive course form, with timed practice exams, spaced repetition flashcards and detailed lesson content for every topic.
This brings LearningBro to full coverage across all three major UK exam boards — AQA, Edexcel and OCR — for A-Level Sciences. Whichever board your school teaches, you can find courses written specifically for your specification.
This post is more than an announcement. It is a working guide to the OCR A-Level science offering: what each subject actually covers, how the qualifications are assessed, who each one suits, and — practically — how to use the courses to turn two years of content into exam marks. If you are choosing subjects, starting Year 12, or revising for the final papers, read the section that fits where you are.
Who These Courses Are For
The OCR A-Level sciences suit three groups especially well, and it is worth being honest about the demands before you commit.
Prospective and current OCR students. The obvious audience. If your school or college teaches Biology A (H420), Chemistry A (H432) or Physics A (H556), everything here is written to your specification — the module structure, the terminology, the required practicals and the distinctive content points that OCR examines and other boards do not. Revising from a generic guide, or one aimed at AQA or Edexcel, means learning content you will not be tested on and missing content you will.
Students weighing up which science, or how many. A-Level sciences are demanding, linear (everything is examined at the end of Year 13), and heavily quantitative. Biology rewards precise recall, disciplined use of terminology and the ability to apply ideas to unfamiliar contexts. Chemistry demands fluency in mathematics and a tolerance for abstraction — moles, energetics and equilibria run right through it. Physics is the most mathematical of the three; if you enjoy algebra and modelling the physical world, it will suit you, and it pairs naturally with A-Level Mathematics. Many university courses — medicine, dentistry, veterinary science, engineering and the natural sciences — expect two or three of these subjects, so check the entry requirements of any degree you are considering before you finalise your choices.
Independent learners and revisers. Because the content is broken into module-sized courses with self-testing built in, you do not have to work through everything in order. You can drop into the single topic you find hardest, work it until it is secure, and leave. That makes the courses as useful for targeted last-minute revision as for building knowledge from scratch across two years.
How the OCR A-Level Sciences Are Structured
All three subjects share the same architecture, which makes them easier to plan for once you understand the pattern.
Each qualification is built from six teaching modules and assessed by three written papers sat at the end of the two-year course. There is no modular re-sitting part-way through and no coursework component that counts toward the grade. The three papers are weighted so that the first two are the major components and the third is a shorter synoptic paper that can draw on the whole specification. Because the third paper is explicitly synoptic — it can combine ideas from any module — revising topics in isolation is not enough. You need to practise connecting them, which is why the courses flag links between modules as you go.
Two features are common to all three sciences and are easy to overlook.
The first is the Practical Endorsement. Alongside the written papers, OCR A-Level sciences carry a separate practical assessment reported as Pass or not classified. It does not contribute to your A*–E grade, but it is recorded on your certificate and universities notice it. More importantly, the written papers examine practical skills directly: you will be asked about apparatus, techniques, sources of error, and how to improve a method. Each subject has a set of defined required practicals, and questions built on them appear across all three papers. The courses reference these practicals explicitly, because "book" knowledge of an experiment you have carried out in the lab is heavily rewarded in the written exams.
The second is the mathematical requirement. The Department for Education sets a minimum proportion of marks in each science that must assess mathematical skills at Level 2 (roughly higher-tier GCSE) or above — and that proportion is largest in Physics, substantial in Chemistry, and present but smaller in Biology. In practice this means you cannot avoid the maths in any of the three, and in Physics it is central. Rearranging equations, working in standard form, handling units and significant figures, and interpreting graphs are examined throughout. The courses treat these as core skills rather than an afterthought, with worked examples that show the method in full.
Why OCR A-Level Sciences?
OCR is one of the three main UK awarding bodies for A-Level qualifications, alongside AQA and Edexcel. Each board has its own specification, structure and emphasis, and exam questions are written specifically to match. Revising from generic resources — or worse, resources written for the wrong exam board — leaves marks on the table.
OCR A-Level Sciences are widely regarded as rigorous, traditional specifications that suit students who want a deep, classical scientific education. The Biology A specification follows a clear modular structure built around concepts. The Chemistry A specification has a strong emphasis on physical chemistry and quantitative analysis. The Physics A specification is unique among UK boards in including a complete medical imaging module — covering X-rays, CT scanning, ultrasound and PET scanning — content that no other A-Level Physics specification offers.
If your school teaches any of these specifications, you need resources written for OCR. Generic revision guides are not enough.
OCR A-Level Biology A (H420)
The OCR Biology A specification is divided into six modules, assessed across three written papers:
| Component | Title | Duration | Marks | Weight |
|---|---|---|---|---|
| Paper 1 | Biological Processes | 2h 15m | 100 | 37% |
| Paper 2 | Biological Diversity | 2h 15m | 100 | 37% |
| Paper 3 | Unified Biology | 1h 30m | 70 | 26% |
The six modules span everything from cell biology and biochemistry through to ecosystems, gene regulation and biotechnology. The full coverage on LearningBro includes:
- Cell Structure and Microscopy — light, TEM, SEM and confocal microscopy, magnification and resolution, eukaryotic and prokaryotic cell ultrastructure, the cytoskeleton, protein production and secretion
- Biological Molecules — water, carbohydrates, lipids, proteins, inorganic ions, biochemical tests
- Nucleic Acids and Enzymes — DNA, RNA, replication, transcription, translation, ATP, enzyme action and inhibition
- Membranes, Cell Division and Cellular Organisation — fluid mosaic model, transport, mitosis, meiosis, stem cells
- Exchange and Transport — gas exchange in mammals, insects and fish, mammalian heart, haemoglobin, transport in plants
- Communicable Diseases and Immunity — named pathogens, plant defences, immune response, antibodies, vaccination
- Biodiversity, Classification and Evolution — sampling, Simpson's Index, Three Domain system, evidence for evolution
- Communication, Homeostasis and Excretion — feedback systems, thermoregulation, liver, kidney, osmoregulation
- Neuronal and Hormonal Communication — action potentials, synapses, blood glucose control, plant hormones
- Photosynthesis and Respiration — light-dependent and light-independent stages, glycolysis, Krebs cycle, oxidative phosphorylation
- Genetics, Cellular Control and Inheritance — gene mutations, lac operon, dihybrid crosses, chi-squared test, Hardy-Weinberg
- Manipulating Genomes, Cloning, Biotechnology and Ecosystems — DNA profiling, genetic engineering, immobilised enzymes, nutrient cycles
Every course includes detailed lessons with diagrams, comparison tables, exam tips, and worked examples — plus 10 multiple-choice questions per lesson for self-testing.
What Biology A really asks of you. More than any of the three sciences, Biology rewards precision of language. The difference between "the enzyme changes shape" and "the enzyme's active site changes shape so it is no longer complementary to the substrate" is the difference between a lost mark and a secured one. The specification is also relentlessly applied: you will be handed unfamiliar data, an unseen investigation or a novel organism and asked to reason from principles you have learned. That is why rote memorisation alone plateaus — the courses pair the recall (structures, cycles, named examples) with the application practice that lifts a good answer to a top one. Statistical skills matter too: Simpson's Index of biodiversity, the chi-squared test in genetics and the Hardy-Weinberg equation all appear, and each is a reliable source of marks once you have drilled the method.
How to use these courses. If you are building knowledge across Year 12, work broadly in the order above — the early modules on cells, biological molecules and enzymes underpin everything that follows, so securing them first pays off repeatedly. If you are revising, use the module structure to target weaknesses: the Genetics, Cellular Control and Inheritance course is the natural home for the calculation-heavy topics (dihybrid crosses, chi-squared, the lac operon), while Exchange and Transport and Photosynthesis and Respiration reward diagram-led revision. Every course is available from the Biology subject page.
OCR A-Level Chemistry A (H432)
OCR Chemistry A is also six modules across three papers:
| Component | Title | Duration | Marks | Weight |
|---|---|---|---|---|
| Paper 1 | Periodic Table, Elements and Physical Chemistry | 2h 15m | 100 | 37% |
| Paper 2 | Synthesis and Analytical Techniques | 2h 15m | 100 | 37% |
| Paper 3 | Unified Chemistry | 1h 30m | 70 | 26% |
The OCR Chemistry specification has several distinctive features that set it apart from AQA and Edexcel. Some content points unique to OCR include:
- Friedel-Crafts alkylation AND acylation — both reactions are required (AQA only requires acylation)
- Directing effects — students must know that OH and NH₂ are 2,4-directing while NO₂ is 3-directing
- Lattice enthalpy formation convention — OCR uses the formation convention (always negative/exothermic), whereas AQA uses the dissociation convention
- D₂O exchange in NMR — explicitly required for identifying labile O-H and N-H protons
- Ideal gas equation in Module 2 — pV = nRT is taught early as part of AS-level content
The 11 LearningBro courses cover every part of the specification, from atomic structure and bonding through to organic synthesis and spectroscopy. Topics include atoms and the mole, acids and redox, periodicity, physical chemistry, organic chemistry, transition elements, aromatic chemistry, carbonyls, polymers, NMR and chromatography.
What Chemistry A really asks of you. Chemistry is where students most often underestimate the quantitative demand. The mole concept introduced early runs through titrations, atom economy, gas volumes, enthalpy calculations, rate equations, equilibrium constants and pH — get comfortable with it in Module 2 and the rest of the course is far smoother; leave it shaky and every later topic feels harder than it should. The subject also splits into three strands that reward different study styles: physical chemistry (energetics, kinetics, equilibrium, electrode potentials) is maths-led and best learned through worked calculations; inorganic chemistry (periodicity, the groups, transition elements) rewards spotting patterns and trends; and organic chemistry rewards learning reaction mechanisms and building reaction maps rather than memorising isolated equations. Spectroscopy — mass spectrometry, infrared and NMR — ties the organic strand together as an identification toolkit, and the OCR-specific points above (Friedel-Crafts acylation and alkylation, D₂O exchange, directing effects) are exactly the kind of detail that distinguishes an OCR-ready answer.
How to use these courses. Prioritise the Atoms and the Mole course first, whatever your starting point — it is the foundation the rest of the specification stands on. From there, the physical-chemistry courses on enthalpy, rates and equilibrium and energetics and electrode potentials reward calculation drilling, while the organic strand — from basic organic chemistry through to carbonyls, polymers and spectroscopy — is best revised by building and re-building reaction pathways from memory. Browse the full set on the Chemistry subject page.
OCR A-Level Physics A (H556)
OCR Physics A has the same three-paper structure:
| Component | Title | Duration | Marks | Weight |
|---|---|---|---|---|
| Paper 1 | Modelling Physics | 2h 15m | 100 | 37% |
| Paper 2 | Exploring Physics | 2h 15m | 100 | 37% |
| Paper 3 | Unified Physics | 1h 30m | 70 | 26% |
Several content areas in OCR Physics are unique among UK A-Level specifications:
- Medical Imaging (Module 6.5) — X-ray imaging, CT scanning, ultrasound (including A-scan, B-scan, Doppler) and PET scanning. Neither AQA nor Edexcel cover medical imaging in their core specifications.
- Malus's Law — I = I₀ cos²θ for polarised light intensity is explicitly required
- Velocity selector — v = E/B for crossed electric and magnetic fields
- Capacitance of an isolated sphere — C = 4πε₀R, not in AQA
- Compulsory astrophysics — In OCR, astrophysics and cosmology are core content (Module 5.5), whereas in AQA they are an optional topic
The 11 courses cover foundations, motion and forces, Newton's laws and momentum, electricity and circuits, waves and optics, quantum physics, thermal physics, circular motion and gravitational fields, astrophysics and cosmology, capacitors and electromagnetism, and the unique nuclear, particle and medical physics module.
What Physics A really asks of you. Physics is the most mathematical of the three sciences, and that is the single most important thing to accept early. You will rearrange equations under pressure, work fluently in standard form, track units through multi-step calculations, and interpret gradients and areas under graphs as physical quantities. Students who treat the maths as a separate hurdle struggle; those who treat it as the language of the subject thrive. Pairing Physics with A-Level Mathematics is common and genuinely helpful, though not universally required — check your course. Beyond the maths, Physics rewards a feel for modelling: recognising when to treat a problem with energy conservation versus forces, or when an approximation is justified. The Foundations module (units, quantities, measurement and uncertainty) is deceptively important, because the skills it teaches — significant figures, uncertainty, and the discipline of quoting units — are examined in every other module and on every paper.
How to use these courses. Start with the Foundations course; the measurement, units and uncertainty skills it builds are assessed throughout the qualification and are the cheapest marks to secure. The mechanics sequence — motion and forces and Newton's laws and momentum — is the backbone of Paper 1 and rewards working through problems with full method shown. The distinctive OCR content lives in the astrophysics and cosmology course and the nuclear, particle and medical physics course, which houses the medical-imaging content no other board teaches — make time for these, as they are examinable and reward careful, structured revision. The complete set is on the Physics subject page.
A Note on OCR A-Level Computer Science (H446)
If your interests run alongside the sciences, it is worth knowing that LearningBro also covers OCR A-Level Computer Science (H446) in full. It sits naturally beside Physics and Mathematics for students heading toward engineering, data science or software, and shares the same rigorous, problem-solving character. Like the sciences, it is broken into topic-sized courses — from processors and hardware to algorithms, data structures, networks and databases — each with self-testing and worked examples. You can explore it from the Computer Science subject page, and there are dedicated guides linked at the end of this post.
What's Included in Every Course
Every OCR A-Level Science course on LearningBro includes:
- 10–14 detailed lessons per course, each one focused on a specific specification point
- Mermaid diagrams for processes, hierarchies and decision trees
- Comparison tables for related concepts
- Worked examples with full solutions
- Exam tips in every lesson
- Common exam mistakes sections
- 10 multiple-choice questions per lesson for self-testing
- Built-in spaced repetition so material returns when you are about to forget it
- Timed practice exams for full exam-condition practice
The content is written in British English, references the OCR specification explicitly throughout, and is checked against the OCR awarding body documentation.
How to Use the Courses Effectively
Having the content is one thing; converting it into a grade is another. A few habits make the difference.
Work in specification order first, then revise by weakness. In Year 12, follow the module sequence — the early modules are the foundations the later ones build on, and skipping ahead usually means going back. Once you have covered a topic in class, the matching course consolidates it. Later, when you are revising, abandon the linear order and go straight to your weak spots: the course structure lets you isolate a single module and work it until it is secure.
Test yourself constantly — do not just read. The strongest evidence in the science of learning is that retrieval beats re-reading. Every lesson carries ten self-test questions for exactly this reason: answer them before you decide you "know" a topic. The built-in spaced repetition then brings material back just as you are about to forget it, which is far more efficient than re-reading everything the week before the exam.
Master the required practicals as knowledge, not just activity. Because practical skills are examined on the written papers, treat every required practical as examinable content: know the apparatus, the method, the likely sources of error and how you would improve it. When a course flags a practical, learn it as thoroughly as any theory topic.
Practise the maths in context. Do not quarantine the calculations. In Chemistry and especially Physics, work the numerical examples in full, showing every step, so the method is automatic under exam pressure. Marks are routinely lost not to conceptual gaps but to arithmetic slips, dropped units and premature rounding — all of which practice eliminates.
Revise synoptically for Paper 3. Because the third paper can combine any modules, spend part of your final revision deliberately connecting topics — energy across mechanics and thermal physics, the mole across physical and organic chemistry, cells across biology. The courses flag these links; follow them rather than treating each module as an island.
How to Get Started
If you are studying OCR A-Level Biology, Chemistry or Physics, the fastest way to start is to follow the learning path for your subject. Each path links the courses in specification order, so you can work through systematically from start to finish.
For students who already know which topic they need to focus on, you can browse courses by subject — Biology, Chemistry and Physics — and start at the lesson you need.
All OCR A-Level Science content is included in the standard LearningBro subscription, with a 7-day free trial — no payment details required to start.
Complete Three-Board Coverage
With OCR now live, LearningBro offers complete A-Level Sciences coverage across all three major UK exam boards:
- AQA — Biology, Chemistry and Physics
- Edexcel — Biology, Chemistry and Physics
- OCR — Biology, Chemistry and Physics (now)
Whichever board your school teaches, you can find content specifically aligned to your specification. No more revising from notes written for the wrong board.
Browse the OCR A-Level Sciences by subject: Biology, Chemistry and Physics, or start with a learning path.
Related Reading
- OCR A-Level Physics: Foundations Guide
- OCR A-Level Physics: Nuclear, Particle and Medical Physics Guide
- OCR A-Level Chemistry: Energetics and Electrode Potentials Guide
- OCR A-Level Biology: Genetics and Inheritance Guide
- OCR A-Level Computer Science: Programming Guide
- OCR A-Level Computer Science: Data Structures Guide