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Chemistry Paper 2
Using the Earth’s Resources
Recycling
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Cards (18)
What should you be able to describe by the end of the video?
Ways to reduce the use of
resources
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What types of materials are produced for modern life?
Glass,
metals
,
plastics
, and ceramics
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What are raw materials often obtained from?
Quarrying
or
mining
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What are the environmental impacts of quarrying?
Produces
dust
and destroys habitats
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What harmful effects can mining have on the environment?
Releases
harmful chemicals
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What is required to turn raw materials into useful products?
A lot of
energy
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What is a common source of energy for processing raw materials?
Fossil fuels
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How can we reduce the need for raw materials?
By
reusing
or
recycling
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What are the benefits of reusing or recycling materials?
Saves
resources
and reduces
waste
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What can glass bottles be done with after use?
They can be reused or
crushed
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What can plastic bottles be recycled into?
Fleece jackets
and
carpets
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How are metals recycled?
They are
melted
and
cast
into products
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Why do different metals need to be separated before recycling?
Depends on the
properties
of the final product
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How can scrap steel be used in recycling?
Added to iron from a
blast furnace
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What does adding scrap steel reduce the need for?
Extracting
iron from
iron ore
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What are the main ways to reduce resource use?
Reusing
materials
Recycling
materials
Reducing
waste production
Using less
energy
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What are the environmental impacts of quarrying and mining?
Quarrying:
Produces dust
Destroys habitats
Mining:
Releases
harmful chemicals
Consumes a lot of energy
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What are the benefits of recycling metals?
Reduces the need for
raw materials
Saves energy in
production
Minimizes
environmental
impact
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