Rates of decomposition lesson created in accordance to the NEW AQA Specification (9-1). Designed for a separate class only, although content can be adjusted to suit any ability. Required practical has been taught in a separate lesson. Includes powerpoint timers, slide animations, embedded video’s and mini review. NB: If you are unable to play embedded videos please view slide notes for link.
AQA spec link: 4.7.2.3
Relevant chapter: B17 organising an ecosystem. AQA Biology Third edition textbook-Page 282-283
Students are required to know the following;
Students should be able to explain how temperature, water and availability of oxygen affect the rate of decay of biological material.
Students should be able to:
• calculate rate changes in the decay of biological material
Gardeners and farmers try to provide optimum conditions for rapid decay of waste biological material. The compost produced is used as a natural fertiliser for growing garden plants or crops. Anaerobic decay produces methane gas. Biogas generators can be used to produce methane gas as a fuel.
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