Recycling

• What types of materials do humans produce for modern life?

  Glass, metals, plastics, and ceramics
• From what are these materials produced?


  Raw materials in limited supply
• Why are metals considered a limited resource?

  They are getting scarce due to extraction
• How are raw materials often obtained?

  By quarrying or mining
• What environmental issues are caused by quarrying?

  Produces dust and destroys habitats
• What harmful effects can mining have on the environment?

  Releases harmful chemicals into the environment
• What is required to turn raw materials into useful products?

  A lot of energy from limited resources
• What is a key method to reduce the need for raw materials?

  Reusing or recycling materials
• What benefits come from reusing or recycling materials?

  Saves resources, energy, and reduces waste
• What can glass bottles be done with to reduce waste?

  They can be reused or crushed
• What can plastic bottles be recycled into?

  Fleece jackets and carpets
• How are metals recycled?

  They are melted and cast into products
• What is a challenge in recycling metals?

  Different metals need to be separated
• What can scrap steel be added to during recycling?

  Iron from a blast furnace
• What does adding scrap steel reduce the need for?

  Extracting iron from iron ore
• Where can you find questions on reducing the use of resources?

  In the revision workbook