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L.O: explain the usefulness of recycling and sustainability of metals

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Presentation on theme: "L.O: explain the usefulness of recycling and sustainability of metals"— Presentation transcript:

1 L.O: explain the usefulness of recycling and sustainability of metals
Life cycle of metals L.O: explain the usefulness of recycling and sustainability of metals

2 Learning outcomes.. Give examples of the impact of our use of metals on the environment Explain how recycling of metals can bring both economic and environmental benefits

3 Mining Vast volumes of waste rock
Large holes in ground – risk of mine collapsing Ruins landscape Use explosives – noisy and produces dust Transport costs/pollution What are the benefits?

4 Use Product has to be made from raw material Energy costs/water costs
Other raw materials may be needed Only a finite amount in the earth Running out of fossil fuels (climate change, acid rain, global dimming)

5 Disposal Landfill – uses up land, toxic chemicals produced that pollute surroundings Burning – releases toxic chemicals Transport costs to get rubbish to site

6 Recycling Uses only a fraction of the energy needed to mine and extract new metal Saves money Conserves resources Slows down filling up of landfill/prevents burning of rubbish E.g. Aluminium recycling saves 95% energy costs and every1kg saves 4kg of Aluminium ore


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