Climate mitigation and adaptation decision models are the focus of this Grade 9 Science worksheet on Earth and Human Activity. Students examine how decision models help compare strategies when future conditions are uncertain, while weighing economic, environmental, and social outcomes.

What students practice

• Explain how scenario analysis compares mitigation and adaptation strategies across different plausible conditions.
• Apply cost-benefit reasoning to evaluate trade-offs between expected benefits and costs.
• Use lifecycle assessment ideas to consider emissions and impacts across a project's full life cycle.
• Identify how policy instruments such as carbon pricing and land-use planning can change incentives and outcomes.
• Interpret a simple decision model diagram and justify a preferred option using stated criteria.

Student activities

The worksheet moves from a dialogue and answer-matching activity into a cloze passage, diagram labeling, and focused reading about mitigation, adaptation, integrated assessment, and climate planning. Students then apply the ideas through multiple-choice questions, fact-or-fiction statements, short responses, and an extended written response comparing climate strategies.

Included for teaching

• Student worksheet focused on climate decision models and Earth and Human Activity
• Separate Teacher Guide PDF with learning objectives, teaching tips, discussion questions, and common mistakes

Classroom use

Use this resource for guided practice, independent work, lesson reinforcement, or discussion preparation in a Grade 9 science setting. The reading and questions give students opportunities to connect decision-model vocabulary with realistic climate-planning considerations, including resilience, equity, sustainability, emissions, habitat impacts, public health, safety, jobs, growth, and development in high-hazard areas.

NGSS framework is named for the resource, making it suitable for instruction centered on Earth and Human Activity while students reason about how different evaluation methods and policy choices influence climate decisions over time.