Test Your Knowledge on Aluminium extraction – mining and electrolysis
Have you just done a science lesson on aluminium extraction – mining and electrolysis? Complete this assessment quiz to test your knowledge!
Iron ore occurs naturally as rocks underground in many countries around the world, including the US, Russia, Australia, Brazil, Sweden and Canada. It is mined using open cast mining.
The bauxite is purified into aluminium oxide or alumina (a pure white powder) so it is easier to transport to refineries across the world.
Electrolysis is used to extract aluminium from the alumina.
Graphite anodes and cathodes must be replaced often as the carbon is used up in the process.
Carbon dioxide and oxygen are the main gases emitted from the electrolysis process.
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