How do people get/ make metal from the Earth?
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How do people get/ make metal from the Earth? PowerPoint PPT Presentation


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How do people get/ make metal from the Earth?. Matt Dunham. Metal ore. Metal ore comes from rocks with metal in them. Miners must process roughly 33 tons of rock and earth to produce a single ounce of gold.

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How do people get/ make metal from the Earth?

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How do people get make metal from the earth

How do people get/ make metal from the Earth?

Matt Dunham


Metal ore

Metal ore

  • Metal ore comes from rocks with metal in them.

  • Miners must process roughly 33 tons of rock and earth to produce a single ounce of gold.

  • After the rock is mined it is crushed in large machines to separate the rock from the metal.

  • http://science.howstuffworks.com/iron.htm


Pig iron

Pig Iron

  • Pig iron is the middle product in iron production.

  • Liquid iron flows into a bed of sand and cools.

  • Pig iron has a very high carbon content.


How do people get make metal from the earth

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  • Iron ore is smelted in a blast furnace at temperatures close to 3,000 degrees Fahrenheit.

  • Iron smelting leaves lead in the environment.


How do people get make metal from the earth

  • Steel is iron that has most of the impurities removed.

  • The advantage of steel over iron is greatly improved strength

  • Open hearth furnace is pigironthepigopenhearthfurnace. It is heated to about 1, 600 degrees f


Signs

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  • Mrs.paige

  • Allison

  • Matt Dunham


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