of some wastes can be fairly easily quantified. Allocating numerical values to pollutant effects is less straightforward and requires value judgements, so LCA is not a purely objective process. Selective or abbreviated LCAs can be devised to evaluate a product but these can be misused to reach conclusions, eg in support of claims for advertising purposes. 4.8.2.9 The reduction in use, reuse Describe a process 1 Discuss the issues relating to Research methods of Video clip - YouTube: and recycling of materials by where a material or using limited resources to producing/obtaining end users reduces the use of product is recycled for generate energy. metal/glass/building limited material resources. It a different use, and materials/clay Extended writing: describe the can also cut the use of explain why this is ceramics/plastics. environmental impacts of energy resources and the viable. Identify in these obtaining raw materials from production of waste. methods the limited the Earth. resources that are used Metals can be recycled by WS 1.4 to generate the energy. melting and recasting or Evaluate factors that affect reforming into different Research how glass is decisions on recycling. products. The amount of recycled. separation required for Research how metal is recycling depends on the recycled and
of some wastes can be fairly easily quantified. Allocating numerical values to pollutant effects is less straightforward and requires value judgements, so LCA is not a purely objective process. Selective or abbreviated LCAs can be devised to evaluate a product but these can be misused to reach conclusions, eg in support of claims for advertising purposes. 4.8.2.9 The reduction in use, reuse and recycling of materials by end users reduces the use of limited material resources. It can also cut the use of energy resources and the production of waste. Metals can be recycled by melting and recasting or reforming into different products. The amount of separation required for recycling depends on the Describe a process where a material or product is recycled for a different use, and explain why this is viable. 1 Discuss the issues relating to using limited resources to generate energy. Extended writing: describe the environmental impacts of obtaining raw materials from the Earth. WS 1.4 Evaluate factors that affect decisions on recycling. Research methods of producing/obtaining metal/glass/building materials/clay ceramics/plastics. Identify in these methods the limited resources that are used to generate the energy. Research how glass is recycled. Research how metal is recycled and Video clip - YouTube:
AQA-8465-SOW-GSE.DOCX