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Materials cycle through ecosystems

Materials cycle through ecosystems

A nutrient cycle is the repeated movement of a nutrient between living organisms and the non-living environment. Biotic components include organisms and material that came from them, while abiotic components include the atmosphere, water and soil.

9.3 Material cycles and decomposition Lesson

  1. GCSE
  2. /Biology
  3. /9.3 Material cycles and decomposition

Step-by-step lessons on Edexcel GCSE Biology 9.3 Material cycles and decomposition, covering 9.3.1 Cycling of materials through ecosystems, 9.3.2 The carbon cycle, 9.3.3 The water cycle, 9.3.4 The nitrogen cycle, 9.3.5 Indicator species and pollution, 9.3.6 Decomposition in preservation and composting, and 9.3.7 Rate changes in decay of biological material. Each one builds up to exam-style questions. Start with the foundational topics and build up to the higher-tier material.

Lessons