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    K_2's Avatar
    K_2 Posts: 92, Reputation: 5
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    #1

    Feb 14, 2008, 10:43 AM
    How strong of a magnet?
    My 8 yr old daughter is doing a project for the science fair that is "Can you find traces of iron in food, dollar bills, and other household items with a magnet?"

    I was wondering how strong of a magnet she needs for this project and a good place to buy the magnets would be?

    Thanks!
    caibuadday's Avatar
    caibuadday Posts: 460, Reputation: 10
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    #2

    Feb 24, 2008, 02:33 PM
    Quote Originally Posted by K_2
    My 8 yr old daughter is doing a project for the science fair that is "Can you find traces of iron in food, dollar bills, and other household items with a magnet?"

    I was wondering how strong of a magnet she needs for this project and a good place to buy the magnets would be?

    Thanks!
    Try Radio Shack, if you get the rare earth magnet becareful, I got cut because two of them slam together too quick (they came from old hard drive)
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