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AQA (KS4)

KS3 & KS4 science curriculum

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Exam subject (KS4)

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Science
Year 7

Ecosystems

9 lessons

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  • BQ03 Biology: How do living things live together in their environments?

Description

This unit explores the interdependence of organisms in ecosystems, including food webs and insect-pollinated crops. It examines how organisms interact with their environment and the impact of toxic materials. It also highlights the importance of biodiversity and preserving genetic material.

This unit builds on pupils’ prior learning from More about food chains, where they explored the flow of energy through organisms as they interact in ecosystems. It deepens their understanding by examining the complex interdependence of organisms, the impact of environmental changes, and the importance of biodiversity. This prepares pupils for the next unit, Biodiversity, where they will further explore how species interactions and environmental factors influence the survival and adaptation of organisms, reinforcing the thread of ecosystem dynamics and conservation.

  1. Food chains
  2. Predator-prey relationships
  3. Adaptations of predators and prey
  4. Food webs
  5. Ecosystems and habitats
  6. Pollination and human food security
  7. Using chemicals in farming
  8. Bioaccumulation
  9. The importance of biodiversity

  • Recognise that environments can change and that this can sometimes pose dangers to living things.
  • Be able to identify how a habitat changes throughout the year
  • Be able to construct and interpret a variety of food chains, identifying producers, predators and prey.
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