This is for Coach Porter's Science classes!

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Monday, April 11, 2011

PS

How is a diamond made?

50 comments:

  1. Diamonds form between 120-200 kms or 75-120 miles below the earth's surface. According to geologists the first delivery of diamonds was somewhere around 2.5 billion years ago and the most recent was 45 million years ago. That is a long time, my friend! According to science , the carbon that makes diamonds, comes from the melting of pre-existing rocks in the Earth's upper mantle. There is an abundance of carbon atoms in the mantle. Temperature changes in the upper mantle forces the carbon atoms to go deeper where it melts and finally becomes new rock, when the temperature reduces. If other conditions like pressure and chemistry is right then the carbon atoms in the melting crustal rock bond to build diamond crystals.

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  2. They are made from the same subtance as coal but the atoms are arranged more tightly.

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  3. the carbon that makes diamonds comes from the melting of rocks in the Earth's upper mantle.

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  4. A diamond is made when carbon that has been melted many miles below the Earth's surface, cools down under extreme pressure.

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  5. most natural diamonds are formed at high pressure, high temperature conditions

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  6. Condensing carbon a lot. Right?

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  7. It is made of a single element ( Carbon atoms)

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  8. when carbon is pressured underground

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  9. when carbon is cooled under extreme pressure beneath the earth

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  10. carbon is pressurized over time underground and crystalizes.

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  11. underground carbon builds pressure over time causing it to explode out of the surface making it crystalize

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  12. carbon pressurized under ground

    2nd
    Austin Pickard

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  13. when high pressure builds up in the earth and mixes with magma and gases.

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  14. Carbon formed ore rocked melted and pressurized.

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  15. its made from caron and presure.
    <3 Ali B.

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  16. when a rock is melted then put under extreme pressure.

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  17. carbon
    -Dekota Shingleton-

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  18. Carbon is formed ore rocked melted and presurized

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  19. pressure of carbon

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  20. its made from carbon and pressure :)
    -Shelby Holder

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  21. 1st block(trevor wellisley)...carbon

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  22. carbon
    first block blake williams

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  23. 1st block..(cody taylor)...Carbon formed ore rocked melted and pressurized.

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  24. presurized carbon

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  25. They are made from the same subtance as coal but the atoms are arranged more tightly.

    caleb keller 2nd

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  26. They are made from the same subtance as coal but the atoms are arranged more tightly.

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  27. from the same substance as coal but the atoms are arranged more tightly

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  28. Diamonds form between 120-200 kms or 75-120 miles below the earth's surface. According to geologists the first delivery of diamonds was somewhere around 2.5 billion years ago and the most recent was 45 million years ago. That is a long time, my friend! According to science , the carbon that makes diamonds, comes from the melting of pre-existing rocks in the Earth's upper mantle. There is an abundance of carbon atoms in the mantle. Temperature changes in the upper mantle forces the carbon atoms to go deeper where it melts and finally becomes new rock, when the temperature reduces. If other conditions like pressure and chemistry is right then the carbon atoms in the melting crustal rock bond to build diamond crystals.

    ^^^wth are you thinking?

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Haley, Bran, and Stan at the beach

Haley, Bran, and Stan at the beach