Explore explanations, case studies and exam-practice ideas for Environmental Systems and Societies. Use the articles below to build understanding, then bring the topics you find difficult to an individual lesson.
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Environmental issues are categorized into 2 major types: Local and Global. Local issues can be specific to and inspired by what you see in your everyday life, including seeing more chemicals in your local lake, planned deforestation in the forest near your house, changes in the...
Updated for IB ESS SL and HL: first assessment 2026. A useful ESS IA topic starts with an environmental issue you can investigate using evidence. Choose a focused question that fits your time, available equipment or data, and the analysis you can explain independently. What the current...
Are you wondering what is better ESS IA choice: a Questionnaire or Experiment? These are both primary data ESS IA choices.Majority of students who possess Humanities based knowledge and, because of this, don’t have knowledge of how to even stage an experiment. Therefore conducting an...
You do not need to wait for a new year to improve your IB study habits. Two useful changes are to turn a difficult task into a specific weekly goal and to plan assignments as a sequence of small actions. For ESS students, both habits...
Many of you will have just got back your mock exam results. Hopefully, many of you will be happy with your results. For some of you, though, I’m sure they weren’t quite what you were hoping for. This can be stressful- especially if you have...
Mock Exam Information for Students The mock exams are held to resemble the real exams as closely as possible; in the setting up of the room, how the students enter and leave the room, and the reading of the instructions. This reduces the students concerns for...
This criterion assesses the extent to which you establish and explore an environmental issue (either local or global) for an investigation and develops this to state a relevant and focused research question.This criterion assesses the development of the purpose of the study. You will be...
Reviewed 4 October 2026 · Current ESS SL and HL course, first assessment 2026.ESS IA surveys and secondary data can support a focused investigation when the evidence answers your research question. A questionnaire is useful for some societal questions; an existing dataset can support an...
This criterion assesses the extent to which you have developed appropriate methods to gather data that is relevant to the research question. The data could be primary or secondary, qualitative or quantitative, and may utilize techniques associated with both experimental or social science methods of...
The individual investigation for internal assessment (usually just called “The IA”) is a practical assignment that all ESS students will complete.The IA makes up 25% of the final score on the course. The assignment will be submitted as a lab report and should be 1500...