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
• What is a consequence of quarrying and mining?

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

  Large amounts of dust
• What can mining release into the environment?

  Harmful chemicals
• What is required to turn raw materials into useful products?

  A lot of energy
• What often provides the energy needed for processing raw materials?

  Limited resources like fossil fuels
• Why is it important to reduce the need for raw materials?

  To save limited resources and energy
• How can we reduce waste and environmental impact?

  By reusing or recycling materials
• What can glass bottles be done with to reduce waste?

  They can be reused or crushed
• What can crushed glass bottles be made into?

  Different glass products like jars
• 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 to iron reduce?

  The amount of iron needed from ore
• Where can you find questions on reducing resource use?

  In the revision workbook
• What is the effect of recycling on waste production?

  It reduces the amount of waste produced
• How does recycling help the environment?

  It conserves resources and reduces pollution
• Why is it important to reduce resource use?

  To conserve limited resources and protect the environment
• What are the environmental impacts of quarrying?

  It destroys habitats and produces dust
• What is the relationship between energy use and raw materials?

  Energy is needed to process raw materials
• What is the benefit of recycling materials?

  It saves resources and reduces waste
• What types of products can be made from recycled glass?

  Jars and other glass products
• What is a common use for recycled plastic bottles?

  Making fleece jackets and carpets
• What is a key step in recycling metals?

  Melting and casting them into products
• Why do different metals need to be separated before recycling?

  To ensure proper recycling based on properties
• What does adding scrap steel to iron reduce?

  The need to extract iron from ore