Review the current IB ESS SL and HL course, eight topics, HL lenses and IA requirements. Build a revision plan from your own questions and school feedback....
ESS Ias
Prepare for IB ESS with the current IA criteria, appropriate data methods and focused exam practice. Understand evaluation and keep assessed work your own....
Compare renewable energy options for IB ESS. Explore lifecycle impacts, biomass, variable supply and the difference between capacity factor and efficiency....
Understand natural capital, natural income and resource management in IB ESS. Compare extraction, regeneration, recycling and the evidence for sustainability....
Evaluate tree-planting and carbon-offset claims in IB ESS. Check additionality, permanence, baselines and the difference between avoided emissions and removal....
Turn ESS feedback into specific questions and manageable practice. Keep a useful log, clarify comments and prioritise changes for the actual task....
Distinguish open, closed and isolated systems. Use clear boundaries and realistic examples without confusing heat leakage with matter exchange....
Understand GPP and NPP as rates, choose appropriate units and assess measurement limits. Distinguish plant production, decomposition and net carbon storage....
Explore the role of photosynthesis in ESS. Understand key processes and their impact on ecosystems, essential for your IB exams....
Avoid common ESS IA mistakes with practical checks for question focus, sampling, analysis and evaluation. Use the current criteria to guide your own work....