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Hostory of discovery of Metals by Mind Map: Hostory of discovery of Metals
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Hostory of discovery of Metals

This is just a demo map that you can delete right away, if you feel like it...

Discovery metals from 6000BC to 4000BC

Extracted by Physcial methods

Extracted by heating the ore

Discovery metals from 4000BC to 2000BC

Extracted by heating the ore

Extracted by heating with base compound

Discovery metals from 2000BC to 500BC

Extracted by heating the ore with high temperature

Discovery metals from 500BC to 500AT

Extracted by electrolysis