Free topical revision checklist for IB DP Environmental Systems & Societies (ESS). Includes IA checklist. Track confidence (1–5), last reviewed and next review for 2026 exams. Rate your confidence (1–5), track review dates, then export as CSV or print.
| Topic | Sub-topic | Resources | Confidence (1–5) | Last reviewed | Next review |
|---|---|---|---|---|---|
| 1. Foundations of ESS | Environmental value systems (EVS): ecocentric/anthropocentric/technocentric | Topic resources | |||
| 1. Foundations of ESS | Systems concepts: storages, flows, feedback, equilibrium | Topic resources | |||
| 1. Foundations of ESS | Models: strengths, limitations and uncertainty | Topic resources | |||
| 1. Foundations of ESS | Sustainability: natural capital, ecological footprint, SDGs | Topic resources | |||
| 1. Foundations of ESS | Fieldwork/research design; variables and sampling | Topic resources | |||
| 1. Foundations of ESS | Data handling: graphs, statistics basics, uncertainty and evaluation | Topic resources | |||
| 2. Ecosystems & biodiversity | Ecosystem structure: species, habitats, niches | Topic resources | |||
| 2. Ecosystems & biodiversity | Energy flow: trophic levels, pyramids, productivity | Topic resources | |||
| 2. Ecosystems & biodiversity | Population dynamics and community interactions | Topic resources | |||
| 2. Ecosystems & biodiversity | Biogeochemical cycles: carbon, nitrogen (and others as taught) | Topic resources | |||
| 2. Ecosystems & biodiversity | Biodiversity: measures and value; ecosystem services | Topic resources | |||
| 2. Ecosystems & biodiversity | Threats: habitat loss, invasive species, overexploitation | Topic resources | |||
| 2. Ecosystems & biodiversity | Conservation strategies: protected areas, restoration, policy tools | Topic resources | |||
| 3. Climate change & pollution | Atmospheric systems: circulation, albedo, greenhouse effect | Topic resources | |||
| 3. Climate change & pollution | Causes of climate change; feedback mechanisms | Topic resources | |||
| 3. Climate change & pollution | Impacts: ecosystems, health, food/water security, inequality | Topic resources | |||
| 3. Climate change & pollution | Mitigation vs adaptation; evaluation and trade-offs | Topic resources | |||
| 3. Climate change & pollution | Pollution: air, water, soil; point vs non-point sources | Topic resources | |||
| 3. Climate change & pollution | Biomagnification and persistent pollutants (as taught) | Topic resources | |||
| 3. Climate change & pollution | Management: regulation, technology, behavioural change | Topic resources | |||
| 4. Human systems: energy, resources & development | Energy choices: fossil, nuclear, renewables; EROI; efficiency | Topic resources | |||
| 4. Human systems: energy, resources & development | Resource use and waste: circular economy; life-cycle thinking | Topic resources | |||
| 4. Human systems: energy, resources & development | Water resource management; access, conflict and governance | Topic resources | |||
| 4. Human systems: energy, resources & development | Food systems: agriculture, fisheries, sustainability and trade-offs | Topic resources | |||
| 4. Human systems: energy, resources & development | Population and development indicators; demographic change | Topic resources | |||
| 4. Human systems: energy, resources & development | Environmental justice and inequality; policy evaluation | Topic resources | |||
| 5. Internal Assessment (IA) checklist | Research question: focused, measurable and ESS-relevant | Topic resources | |||
| 5. Internal Assessment (IA) checklist | Method: sampling design, controls, repeatability and ethics/safety | Topic resources | |||
| 5. Internal Assessment (IA) checklist | Data: quality, sufficient range, and appropriate units | Topic resources | |||
| 5. Internal Assessment (IA) checklist | Analysis: processing, visuals, statistics (as appropriate) and interpretation | Topic resources | |||
| 5. Internal Assessment (IA) checklist | Conclusion linked to evidence; avoid overclaiming | Topic resources | |||
| 5. Internal Assessment (IA) checklist | Evaluation: EVS considerations, limitations, improvements, extensions | Topic resources |
Tip: Pair this checklist with past paper practice and spaced repetition. Always confirm exact assessment components (SL/HL, options) with your school’s IB DP route for the 2026 exam session.
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 IB DP Environmental Systems & Societies (ESS) 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 both Standard Level (SL) and Higher Level (HL) topic expectations. 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.
16–20 weeks of consistent revision is realistic for IB DP — work through one topic per week alongside ongoing past-paper practice and Internal Assessment polish. 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 IB DP Environmental Systems & Societies (ESS) specification published by your exam board. 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.