AC9S7U02 • Year 7 Science

Food Webs, Energy Flow and Ecosystem Change (AC9S7U02)

Use food-web models to trace matter and energy and predict how abiotic and biotic changes can affect populations.

Learning focus

  • Read arrows from food source to consumer.
  • Explain that matter cycles while energy flows and is dissipated as heat.
  • Trace direct and indirect effects of drought, habitat change, pollinator or predator loss and introduced species.
  • Recognise food-web strengths, limitations and uncertainty.
46Practice questions
40Test questions
11Homework tasks
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