science...help

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please check my answer ....plz...

the question is:

how is the size of the minerals grains affected by the rate at which molten rock materials cools?
and i think the answer is :

the bigger the grains the faster it cools.

  • science...help -

    The bigger the grains the faster it cools is right.. Good job!

  • science...help -

    thanks

  • science...help -

    i m comfused....

    is it the bigger the grain the faster it cools or the bigger the grain the slower it cools.

  • science...help -

    Bigger the grain the faster it cools.. so if you had a 10 ounce piece of grain, and a 5 ounce piece of grain, the 10 ounce piece of grain would cool faster.

  • science...help -

    ok...thanks misty!!!!!

  • science...help -

    No problem!

  • science...help -

    Nope, wrong.
    http://library.thinkquest.org/20035/newpage8.htm

    The slower the lava cools, the bigger the crystal rocks.
    Fast cooling leads to smaller rocks.

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