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      Lesson details

      Learning outcome

      I can explain how to use resources more sustainably and reduce waste.

      Key learning points

      1. Waste is often sent to incinerators or landfill sites, which are sources of greenhouse gases.
      2. Reuse, reduce, recycle is what we can do to minimise waste.
      3. Sustainable use of resources helps ensure that they are available for future generations.

      Keywords

      • Landfill - the disposal of waste by burying it

      • Waste incinerator - a furnace that burns waste, often to generate electricity

      • Recycle - to convert waste material into new products

      • Sustainable resource - a resource that can be maintained at a certain level for as long as is needed

      Common misconception

      Recycling is the most effective way reducing the amount of waste we throw away.

      Highlight the understanding that reusing and reducing what is used is more effective and that recycling should be seen as a last resort. Repairing and repurposing can also help to reduce waste.

      Teacher tip

      Task B provides parallels with pupils home lives, although domestic waste is just 14% of total waste (UK Government stats, 2022), and changes made by larger organisations or to laws are more consequential. It may be appropriate to discuss how political activity can be used to help bring these about.

      Licence

      This content is © Oak National Academy Limited (2026), licensed on Open Government Licence version 3.0
      except where otherwise stated. See Oak's terms & conditions
      (Collection 2).

      Lesson video

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      Prior knowledge starter quiz

      6 Questions

      Q1.
      What is the best description of a natural resource?

      one that is not a bright colour
      Correct answer: one that can be found in the environment
      one that is found underground
      one that is found in plants or animals

      Q2.
      What is a renewable resource?

      Correct answer: one that is replenished faster than it is used up
      one that is replenished at the same speed that it is used up
      one that is replenished slower than it is used up

      Q3.
      Which of these are natural resources?

      concrete
      mobile phone
      Correct answer: stone
      Correct answer: wood

      Q4.
      Which of these resources are renewable?

      natural gas
      petrol
      Correct answer: sunlight
      Correct answer: wind

      Q5.
      How do we use a resource sustainably?

      replenish it less quickly than it is used up
      Correct answer: replenish it as quickly as it is used up
      replenish it before it is used up

      Q6.
      Why are different types of waste collected in different bins?

      to reduce the amount of waste
      to help identify things to reuse
      Correct answer: to help recycle different materials

      6 Questions

      Q1.
      What is waste that is buried called?

      Correct Answer: landfill, land fill

      Q2.
      Which flammable gas is often given off by decomposing buried waste?

      carbon dioxide (CO₂)
      hydrogen (H₂)
      Correct answer: methane (CH₄)
      oxygen (O₂)

      Q3.
      What type of waste does a waste incinerator burn?

      all waste
      recycled card and paper
      recycled garden waste
      recycled plastic
      Correct answer: waste that is not recycled

      Q4.
      What is the main greenhouse gas given off when waste is burned?

      Correct answer: carbon dioxide
      hydrogen
      methane
      oxygen

      Q5.
      Which of these does not reduce the quantity of new materials we need?

      reducing
      recycling
      Correct answer: replacing
      reusing

      Q6.
      Why is it more sustainable to use a plastic box to keep sandwiches fresh compared to wrapping them in plastic film?

      it stops them getting squashed
      Correct answer: it uses less plastic overall
      it is more airtight
      it can be recycled each day

      To help you plan your 7 science lesson on: Waste and recycling, download all teaching resources for free and adapt to suit your pupils' needs...