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11 worksheets · Save $11.00 (20%) · prices shown inside the bundle

1. 01
   Biodiversity Indices Practice Worksheet | Grade 7 Science Assessment

   Grade 7 · Science · 32 Pages

   • Explain how species richness, evenness, and diversity indices summarize biodiversity in a community.
   • Interpret higher vs. lower diversity values across different habitats and predict impacts on stability and resilience.
   • Describe how habitat heterogeneity relates to niche diversity and species turnover, and why single metrics can miss complexity.
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2. 02
   Human Stewardship Test Prep Worksheet | Grade 7 Science Ontario

   Grade 7 · Science

   • Explain how human actions can alter ecosystems and change species composition and ecosystem functions
   • Describe consequences for ecosystem resilience when impacts continue over time
   • Identify stewardship principles such as habitat protection, mitigation, restoration priorities, and evidence-based monitoring
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3. 03
   Abiotic Drivers Worksheet Practice and Assessment | Grade 7 Science

   Grade 7 · Science · 32 Pages

   • Describe how abiotic drivers such as temperature, light, soil composition, moisture, and pH influence where organisms can live.
   • Explain how physical gradients create microhabitats and shape resource availability within ponds, forests, and meadows.
   • Connect abiotic conditions to organismal tolerance ranges and patterns of species occurrence.
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4. 04
   Succession Patterns Test Prep Printable | Grade 7 Science

   Grade 7 · Science

   • Explain ecological succession as directional change in community composition after disturbance.
   • Distinguish primary succession from secondary succession and identify typical successional stages.
   • Describe how abiotic changes and biotic interactions (competition and facilitation) drive species turnover.
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5. 05
   Freshwater Dynamics Test Prep Printable Worksheet | Grade 7 Science

   Grade 7 · Science

   • Describe how light penetration, stratification, and oxygen gradients create vertical zones in ponds and lakes
   • Explain how seasonal changes (warming, cooling, turnover) affect dissolved oxygen, nutrient mixing, and habitat suitability
   • Use pond and lake examples to predict where different organisms are likely to live based on abiotic conditions
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6. 06
   Trophic Energy Flow Test Prep Worksheets | Grade 7 Science

   Grade 7 · Science

   • Explain how energy captured by producers is transferred to consumers through trophic levels
   • Use quantitative efficiency ideas (percent energy transfer) to predict how much energy becomes available at higher levels
   • Describe why biomass and energy availability often decrease from one trophic level to the next
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7. 07
   Decomposition Cycles Practice Worksheet | Grade 7 Science Review

   Grade 7 · Science

   • Explain how detritivores, fungi, and bacteria break down organic matter during decomposition
   • Describe how carbon and nitrogen move through detrital pools and primary producers over time
   • Analyze how abiotic conditions (like moisture, temperature, and oxygen) affect decomposition rates and soil fertility
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8. 08
   Invasive Species Impacts Practice Assessment | Grade 7 Science

   Grade 7 · Science · 32 Pages

   • Explain how invasive (non-native) species can affect native species through competition and trophic changes.
   • Describe multiple pathways by which invasive species are introduced to new ecosystems.
   • Analyze how establishment conditions influence whether an invasive species successfully spreads.

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9. 09
   Ecosystem Basics Test Prep Worksheet | Grade 7 Science Ontario

   Grade 7 · Science

   • Distinguish biotic and abiotic components of an ecosystem and describe their roles.
   • Identify trophic categories (producers, consumers, decomposers) and explain general energy flow.
   • Use food chains from pond and forest settings to describe how matter cycles through ecosystems.
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10. 10
    Population Limits Test Prep Printable | Grade 7 Science

    Grade 7 · Science · 31 Pages

    • Explain the difference between exponential growth and logistic growth using the idea of carrying capacity.
    • Identify limiting factors that can reduce or regulate population size, including biotic and abiotic factors.
    • Distinguish density-dependent from density-independent influences on population growth.
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