Lithosphere, atmosphere, hydrosphere, biosphere, human population and resources, energy and managing impact. Aligned to the 2026 Cambridge IGCSE 0993 syllabus.
| Topic | Sub-Topic | Confidence (1–5) | Last Reviewed | Next Review |
|---|---|---|---|---|
| 1. Earth's lithosphere | Structure of the Earth: crust, mantle, core | |||
| 1. Earth's lithosphere | The rock cycle: igneous, sedimentary, metamorphic rocks | |||
| 1. Earth's lithosphere | Weathering: physical, chemical, biological | |||
| 1. Earth's lithosphere | Mineral resources and their extraction | |||
| 1. Earth's lithosphere | Impact of mining on environment and communities | |||
| 1. Earth's lithosphere | Soil formation, types and degradation | |||
| 2. Earth's atmosphere | Composition and layers of the atmosphere | |||
| 2. Earth's atmosphere | Weather vs climate; climate zones | |||
| 2. Earth's atmosphere | Climate change: greenhouse effect and global warming | |||
| 2. Earth's atmosphere | Air pollution: sources, effects on health and ecosystems | |||
| 2. Earth's atmosphere | Acid rain: causes, effects, mitigation | |||
| 2. Earth's atmosphere | Ozone depletion: CFCs and the ozone layer | |||
| 3. Hydrosphere | The water cycle and its components | |||
| 3. Hydrosphere | Surface water and groundwater resources | |||
| 3. Hydrosphere | Water pollution: sources, effects, management | |||
| 3. Hydrosphere | Water scarcity and access (global perspective) | |||
| 3. Hydrosphere | Sustainable water management strategies | |||
| 3. Hydrosphere | Oceans: importance, threats and conservation | |||
| 4. Biosphere and ecosystems | Ecosystem structure: producers, consumers, decomposers | |||
| 4. Biosphere and ecosystems | Energy flow and food chains/webs | |||
| 4. Biosphere and ecosystems | Nutrient cycles: carbon, nitrogen, water | |||
| 4. Biosphere and ecosystems | Biodiversity: measurement and importance | |||
| 4. Biosphere and ecosystems | Threats to biodiversity: deforestation, habitat loss | |||
| 4. Biosphere and ecosystems | Conservation strategies: protected areas, sustainable use | |||
| 5. Human population and resources | Population growth: causes, trends, demographic transition | |||
| 5. Human population and resources | Agricultural systems: subsistence vs commercial | |||
| 5. Human population and resources | Food security: production, distribution, access | |||
| 5. Human population and resources | Soil erosion and conservation | |||
| 5. Human population and resources | Sustainable agriculture and food sources | |||
| 5. Human population and resources | Impacts of overpopulation on resources | |||
| 6. Energy and the environment | Non-renewable energy: fossil fuels, nuclear | |||
| 6. Energy and the environment | Renewable energy: solar, wind, hydro, geothermal, biomass | |||
| 6. Energy and the environment | Energy efficiency and conservation | |||
| 6. Energy and the environment | Climate impact of energy choices | |||
| 6. Energy and the environment | Global energy mix and transitions | |||
| 6. Energy and the environment | Sustainability of energy systems | |||
| 7. Managing human impact | Pollution control: technology and regulation | |||
| 7. Managing human impact | Waste management: reduce, reuse, recycle | |||
| 7. Managing human impact | Hazardous waste and disposal | |||
| 7. Managing human impact | Sustainable development principles | |||
| 7. Managing human impact | International environmental agreements | |||
| 7. Managing human impact | Role of individuals, communities and governments |
Use with our Past Paper Finder for Cambridge IGCSE Environmental Management 0993 past papers.
Quick answers about this free revision checklist, how to use it for exam prep, and how it relates to the official syllabus.
This revision checklist mirrors the official Cambridge IGCSE Environmental Management 0993 syllabus for the 2026 examination series. Every topic and sub-topic on the page is taken from the published syllabus document, so working through the list in order gives you full coverage of what your exam can assess. It covers the Extended tier; Core tier students can use the same checklist and skip Extended-only sub-topics. For the authoritative version, always cross-check with the latest syllabus PDF on your exam board's website before your final revision push.
The number of top-level topic groups varies by subject, but you can see the exact count on this page — each major heading in the checklist corresponds to one syllabus topic group, and each row below it is a syllabus-level sub-topic. Use the confidence column (1–5) to flag which sub-topics need more work, and re-score yourself weekly to track real progress instead of guessing.
8–12 weeks of focused revision, covering 1–2 topic groups per week with weekly past-paper practice, is realistic for most GCSE / IGCSE students. Use this checklist to plan your weeks: filter by topics you have rated 1–3 and spend your first revision block there. Subjects with heavy practical or extended-writing components (e.g. sciences, English) need more past-paper time in the final block than the topic-by-topic phase.
Revise in roughly the order the syllabus lists the topics — exam boards build later topics on earlier ones, so taking them in syllabus order avoids gaps. Once you have rated every topic, switch to weakest-first: filter the checklist by confidence ≤ 2 and prioritise those topics in your next study block. This is more effective than re-revising topics you already score 4–5 on.
You can find past papers and mark schemes via Tutopiya's Past Paper Finder and on your exam board's official site. Once you have rated each sub-topic on this checklist, attempt past-paper questions on your weakest topics first — practising under timed conditions is the single best predictor of exam performance, more so than re-reading notes.
Use the Download CSV or Print PDF button at the bottom of the checklist. CSV opens in Excel, Numbers or Google Sheets so you can sort by confidence and re-arrange revision order. The PDF is print-ready for offline use. A free Tutopiya account is required for download — this also unlocks the matching topic resources, notes and worked examples on the Learning Portal.
Yes, the checklist itself is free — you can view, score and re-score every topic on this page without an account. The CSV / PDF downloads and access to matching Tutopiya Learning Portal resources require a free account. There is no payment required at any point; teachers and parents can also use this checklist freely with their students.
Yes. The topics and sub-topics on this page are drawn from the current 2026 Cambridge IGCSE Environmental Management 0993 specification published by Cambridge. Exam boards occasionally tweak weighting or assessment structure mid-cycle, so do a quick sanity-check against the official syllabus PDF when you start your revision and again 4 weeks before the exam.