| Environmental Science | 1. How are Earth's systems organised and connected? • Use interactions between the atmosphere, biosphere, hydrosphere and lithosphere; ecosystem components and processes; energy flows; nutrient cycles; ecosystem functioning; and Earth-system connections that support life.• For harder questions, include Earth-system models, food-web or nutrient-cycle descriptions, data tables, causal reasoning, model limitations and multi-step environmental process reasoning.• For exam-style questions, require interpretation of supplied diagrams, data, field observations or Earth-system models rather than recall alone.2. How do Earth's systems change over time? • Use natural and human-induced change in Earth's systems, including change over geological and recent time, environmental indicators, ecosystem responses, monitoring data and responsible management of change.• For harder questions, include environmental-change data, scenario analysis, trend interpretation, uncertainty, causal chains and evidence-based management reasoning.• For exam-style questions, make the timescale, evidence and affected Earth system explicit so one answer is clearly best.3. How do scientific investigations develop understanding of how Earth's systems support life? • Use environmental investigation skills in ecosystem components, ecosystem monitoring or environmental change contexts: investigable questions, hypotheses, variables, fieldwork design, measurement, sampling, data collection, analysis, limitations and communication.• For harder questions, include fieldwork scenarios, sampling bias, primary data, uncertainty, outliers, method critique, model selection and evidence-based conclusions.• For exam-style questions, prefer short practical scenarios with one clearly best method, conclusion, limitation or improvement. | 1. How can we manage pollution to sustain Earth's systems? • Use chemical and physical characteristics of pollutants, pollution effects across Earth's systems, local and global pollution impacts, pollution indicators, mitigation strategies and justified management options.• For harder questions, include pollution data, indicator results, contaminant movement scenarios, risk-benefit evaluation and evidence-based pollution management reasoning.• For exam-style questions, avoid opinion-only environmental claims and require evidence from supplied data, observations or scenario details.2. How can we manage food and water security to sustain Earth's systems? • Use food and water security, agricultural systems, ecological footprint analysis, water availability, resource demand, food and water calculators, sustainable management options and regional environmental trade-offs.• For harder questions, include comparing agricultural systems, interpreting food or water data, evaluating ecological footprint evidence, trade-off reasoning and justified recommendations for a nominated region.• For exam-style questions, ensure sustainability recommendations are evidence-based and linked to environmental, social or resource constraints supplied in the stimulus.3. How do scientific endeavours contribute to minimising human impacts on Earth's systems? • Use contemporary environmental science discoveries, innovations, issues, advances or case studies linked to pollution management or food and water security, including scientific evidence, stakeholder perspectives and science communication.• For harder questions, include source evaluation, competing claims, socio-cultural or ethical implications, stakeholder trade-offs and evidence-based explanation of how science contributes to environmental management.• For exam-style questions, ask students to connect scientific concepts to management impacts without drifting into unsupported personal opinion. | 1. Why is maintaining biodiversity worth a sustained effort? • Use biodiversity, ecosystem services, human health and wellbeing links, threats to biodiversity, threatened endemic species, conservation strategies, management evaluation and sustainability principles.• For harder questions, include biodiversity data, species case studies, management strategy comparison, uncertainty and evidence-based evaluation.• For exam-style questions, require explicit links between evidence, biodiversity value, threat processes and justified management action.2. When is development sustainable? • Use sustainability principles, environmental management strategies, development case studies, Earth systems perspectives, atmosphere/biosphere/hydrosphere/lithosphere impacts, stakeholder reasoning and management trade-offs.• For harder questions, include development scenario analysis, sustainability criteria, environmental impact data, stakeholder constraints, strategy comparison and justified decision-making.• For exam-style questions, make the development context and sustainability evidence explicit so recommendations are evidence-based rather than preference-based. | 1. How can we respond to climate change? • Use climate variability, climate change evidence, confidence and uncertainty language, impacts on living things and society, mitigation, adaptation, environmental decision-making and management responses.• For harder questions, include climate graphs, IPCC-style confidence statements, environmental impact data, scenario analysis, uncertainty and evaluation of mitigation or adaptation strategies.• For exam-style questions, require interpretation of supplied climate evidence and avoid treating climate response questions as political opinion.2. What might be a more sustainable mix of energy sources? • Use renewable and non-renewable energy sources, availability, reliability, efficiency, emissions, environmental impacts, sustainability principles and responsible energy decision-making.• For harder questions, include energy mix data, emissions comparisons, flow diagrams for energy conversion, efficiency calculations at school level, resource reliability, trade-off evaluation and evidence-based energy recommendations.• For exam-style questions, ensure the energy-source comparison uses supplied data and clearly stated sustainability criteria.3. How is scientific inquiry used to investigate contemporary environmental challenges? • Use student-designed environmental investigations related to contemporary environmental challenges: questions, hypotheses, variables, sampling, fieldwork, modelling, data tables, uncertainty, outliers, conclusions, limitations, improvements, logbook evidence and scientific poster communication.• For harder questions, include scenario evaluation, data synthesis, uncertainty interpretation, method validity, evidence-based recommendations and communication to technical or non-technical audiences.• For exam-style questions, use investigation-style prompts that require evidence-based reasoning, not generic practical-report wording. |
