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4 Cards in this Set
- Front
- Back
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Paper production |
1)Trees are cut down and transported by lorry to paper mill. 2)Bark is stripped off and cut into small pieces by a chipper. 3)Undergo chemical/mechanical pulping to become mushy pulp. 4)Pulp is washed, bleached and pressed flat. Then dried and cut to size. |
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Wood Production |
1)Trees from forest are cut down 2)Bark is removed, the trunk is sawn up and the wood is then dried so it becomes seasoned. |
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Metal Production |
metal is mined from ground as metal ore. then metal from ore is extracted through heat or electrolysis and then refined. Metal is then cast into mould |
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Plastic Production |
Crude oil is extracted from the ground and separated into fractions by fractional distillation. Fractions can be linked together to form polymers or cracked so it becomes polymerised. These can then be cut or moulded. |
