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Natural & Earth Science

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  • Gem Bottles
    GEOCENTRAL

    Gem Bottle

    $2.99

    Each labeled glass bottle holds tiny chips of a particular mineral. Some natural, some color enhanced. Sold individually. For information on specif...

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  • Gyroscope
    Original TEDCO Gyroscope/Boxed
    copernicus

    Gyroscope

    $14.99

    Young minds love to watch as this classic toy seems to defy gravity. It's hands-on learning of the principle of physics that is the stabilizing f...

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