American Educational Plexiglas 3-D Magnetic Field Demonstrator -
$46.99
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American Educational Plexiglas 3-D Magnetic Field Demonstrator Made of plexiglas with 2 hinged chambers, the field demonstrator is used to demonstrate the power of a magnetic field The center battery is attached to one chamber When the chambers are separated the filings fall When the chambers are joined and inverted the filings realign themselves according to the magnetic field lines Measures 5-1/8" width by 5" height by 5-1/4" depth
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