Earth's Life Support Systems is the OCR A-Level Geography (H481) unit on the water and carbon cycles, and how the two are linked. It is examined in Section B of Paper 1, and the specification's main named case studies are the Amazon rainforest and the Arctic tundra.
The whole unit, built around the four enquiry questions OCR uses.
1. How important are water and carbon to life on Earth?
2. How do the water and carbon cycles operate in contrasting locations?
3. How much change occurs over time in the water and carbon cycles?
4. To what extent are the water and carbon cycles linked?
Every specification bullet point is covered, clearly identified, and in one download. No more searching across your paper files, teacher PowerPoints, OneNote and Google Classroom assignments, or generic free notes you have found online.
Examiner's Warnings — concise summaries of the common mistakes identified in the OCR Examiner's Reports, so that you do not make the same ones and do not need to go and read them yourself.
Past exam paper questions, and where to find them — every question OCR has already set on each topic, so that you know how this material is tested in the exam.
Potential Future Questions — written with the same command words and the same wording structure as the OCR questions, so that you can see what is likely to come up and prepare for it.
Revision Recall — retrieval practice questions, a technique educational research has repeatedly shown to produce significant gains in student outcomes. These support active revision of the content rather than rereading it.
Case Studies - Most students learn case studies as a set of facts, then find that the exam does not ask for facts. It asks for an argument.
Every case study closes with a Big Picture: the story that case study tells, and the different arguments it can be used to build.
Most revision notes are written generically, covering the content and concepts shared across several exam boards. They are not written for OCR H481, and it shows in what they leave out.
These notes were written by someone who taught Geography for eighteen years, eight of them as Head of Department, and who has taught the OCR specification since it was introduced in 2016. Every specification point is here, in the order OCR teaches it.
Earth's Life Support Systems is the unit every OCR A-Level geographer answers, so it is useful to you whichever options your school teaches. The whole unit is free — not a sample, and not a chapter with the useful part removed.
Before you spend anything on revision notes, you should be able to test their quality for yourself. Start with the FREE Earth's Life Support Systems Revision notes.
Yes. All four enquiry questions, both case studies — the Amazon rainforest and the Arctic tundra — and practice questions throughout. The complete unit, in the same format as every other unit on this site.
OCR A-Level Geography, H481. Earth’s Life Support Systems is topic 1.4, examined on Paper 1. These notes follow that specification and are not written for AQA or Edexcel.
Yes. Earth’s Life Support Systems is compulsory on H481, so every OCR student sits it whichever options their school has chosen. It is the one unit everyone needs.
OCR A-LEVEL · H481
The three landscape options, in the same format, with the same features.
OCR A-LEVEL · H481
The five Geographical Debates units, in the same format, with the same features.