pptx, 9.85 MB
pptx, 9.85 MB
docx, 1.51 MB
docx, 1.51 MB

Edexcel. Topic 6: The Carbon Cycle and Energy Security.
Lessons 4-5 of 19: The Carbon Cycle (Gulf Stream, biological carbon pump, role of soil and trees)

  • Key words quiz starter with mark scheme
  • Thermohaline circulation
  • The failing Gulf Stream
  • The biological carbon pump and the carbonate pump (Students use a writing frame to explain these processes and then design a diagram to represent this – 4 examples provided)
  • Terrestrial stores: producers, consumers, decomposers
  • Respiration and photosynthesis recap
  • The role of soil and trees in the carbon cycle
  • Exam skills: Explain the significance vs assess the significance (with 3 model answers for comparison)
  • Two more practise exam questions with model answers and mark schemes
  • Plenary – draw a systems diagram
  • Key content from the lesson
  • Notes for teachers
  • Additional document with images to stick in and annotate

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