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Year 7

Waste and recycling

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

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New
New
Year 7

Waste and recycling

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

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These resources will be removed by end of Summer Term 2025.

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Lesson details

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.


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

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.
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Licence

This content is © Oak National Academy Limited (2025), licensed on Open Government Licence version 3.0 except where otherwise stated. See Oak's terms & conditions (Collection 2).

Lesson video

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
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