Recycling

• Name two types of materials mentioned that are produced from raw materials.

  Glass and metals
• What is a consequence of quarrying and mining for raw materials?


  They are harmful to the environment
• What harmful effect does quarrying produce?


  Large amounts of dust
• How does mining affect the environment?


  It can release harmful chemicals
• What is a significant energy source used to turn raw materials into products?

  Fossil fuels
• Why is it important to reduce the need for raw materials?


  To save limited resources and energy
• What are two methods mentioned to reduce the need for raw materials?

  Reusing and recycling
• What can glass bottles be done with to reduce waste?


  They can be reused or crushed
• What can crushed glass bottles be used to make?


  Different glass products, such as jars
• What can plastic bottles be recycled into?


  Fleece jackets and carpets
• How are metals recycled?


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


  They usually need to be separated before recycling
• What can scrap steel be added to in recycling processes?


  Iron from a blast furnace
• What is the benefit of adding scrap steel to iron from a blast furnace?


  It reduces the amount of iron needed to extract from iron ore
• What are the environmental impacts of quarrying and mining?


  • Produces large amounts of dust
  • Destroys habitats
  • Releases harmful chemicals into the environment
• What are the benefits of reusing and recycling materials?


  • Saves limited resources
  • Reduces energy consumption
  • Decreases waste production
  • Less harmful effect on the environment
• What is the process of recycling metals?


  1. Metals are collected
  2. Metals are melted
  3. Metals are cast into new products
  4. Separation may be required based on properties
• What are some examples of products made from recycled materials?


  • Glass bottles can be reused or crushed into new glass products
  • Plastic bottles can be recycled into fleece jackets and carpets
  • Scrap steel can be added to iron from a blast furnace