🔬 Grade 7 • 🌿 Ecosystems, Populations, and Biodiversity
Ecosystems, Populations, and Biodiversity
Explain how populations interact in ecosystems, how energy and matter move, and why biodiversity affects stability and recovery.
📋 What You'll Learn
- 1 Describe how organisms depend on resources and relationships in an ecosystem
- 2 Explain how populations change when conditions in an ecosystem change
- 3 Use food-web evidence to explain movement of energy and matter
- 4 Describe why biodiversity can affect ecosystem stability
🗺️ Learning Path
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Lesson
Read the full step-by-step lesson with examples and key vocabulary
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Ecosystems and Populations Practice
medium • 18 minutes • 8 problems
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Food Webs and System Change Worksheet
medium • 20 minutes • 8 problems
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Biodiversity and Stability Worksheet
hard • 20 minutes • 8 problems
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Population Data and Biodiversity Decisions Worksheet
hard • 22 minutes • 8 problems
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Practice Quiz
Test your knowledge with an interactive quiz and get instant feedback
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Teaching Guide
For parents & teachers — strategies, activities, and differentiation tips
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