6907593
Description
Flashcards by Paris Aylott, updated more than 1 year ago
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Created by Paris Aylott
over 7 years ago
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| Question | Answer |
| Metals from rocks | Ores contain enough to make extraction worthwhile Metals are extracted from the ores chemically Some metals can be extracted by reduction with carbon some metals have to extracted by electrolysis copper is purified by electrolysis Electrolysis means splitting up with electricity |
| Impacts of extracting metals | Metal extraction can be bad for the environment as it causes noise, scarring of the landscape |
| Recycling metals | IMPORTANT TO RECYCLE takes lots of energy fossil fuels are running out so its important to conserve them recycling metals only uses a small fraction of the energy to mine and extract new metals |
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