Research how kitchen Competition: plan the 4.7.2.3 Decomposition Explain how decay is useful 2 Competition: Potatoes and garden wastes can best conditions for to plants (links with 4.4.1.3). and equipment as Compost provides be recycled. decay. described in gardeners and Evaluate the necessity and Competition whose farmers with a natural effectiveness of recycling Biogas generator: – potato will decay the fertiliser for plants and organic kitchen or garden fastest? Observe results crops. wastes. in later lesson. Describe how gardeners and Past exam questions farmers try to provide Discuss where and why on biogas generators. optimum conditions for rapid biogas generators are decay of wastes. useful. Anaerobic decay Explain the difference BBC video showing produces methane between aerobic and different biogas gas. anaerobic decay. generators (see resources). Biogas generators can Define the term biogas. produce methane Compare and evaluate Evaluate the use of biogas can be used as a fuel. different types of biogas generators. generator. Evaluate designs. Explain why the output from Design and build a simple a biogas generator is gas generator. Evaluate affected by climatic the designs and select conditions. the best to demonstrate how the methane can be burned as a fuel.
4.7.2.3 Decomposition Compost provides gardeners and farmers with a natural fertiliser for plants and crops. Anaerobic decay produces methane gas. Biogas generators can produce methane can be used as a fuel. Explain how decay is useful to plants (links with 4.4.1.3). Evaluate the necessity and effectiveness of recycling organic kitchen or garden wastes. Describe how gardeners and farmers try to provide optimum conditions for rapid decay of wastes. Explain the difference between aerobic and anaerobic decay. Define the term biogas. Evaluate the use of biogas generators. Explain why the output from a biogas generator is affected by climatic conditions. 2 Research how kitchen and garden wastes can be recycled. Competition – whose potato will decay the fastest? Observe results in later lesson. Discuss where and why biogas generators are useful. BBC video showing different biogas generators (see resources). Compare and evaluate different types of biogas generator. Design and build a simple gas generator. Evaluate the designs and select the best to demonstrate how the methane can be burned as a fuel. Competition: plan the best conditions for decay. Evaluate designs. Competition: Potatoes and equipment as described in Biogas generator: Past exam questions on biogas generators.
AQA-8461-SOW-ECOL.DOCX