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Magnetism
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Negtively charged _______ move around the outside of an atom.
electrons
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Magnets have two poles, what are they?
North Pole (N) and South Pole (S)
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The mineral ________ is a natural magnet
magnetite
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This acts like a magnet but only when an electric current flows through it
electromagnet
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Opposite poles ________ each other.
attract
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The earth is filled with hot liquid _____, that helps form the magnetic field.
iron
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True or False: Just because an object is attracted to a magnet, does not mean it is a magnet itself.
True
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Magnets push each other away because identical poles ______ each other.
repel
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What animals can detect Earth´s magnetic field and use it to navigate?
bees, pigeons, salmon
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_________ is an object´s ability to attract certain metals.
magnetism
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The earth´s ____________ helps protect it from radiation and solar wind.
magnetic field
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Any object that has a magnetic force
magnet
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a temporary magnet that only gives off a magnetic force for a period of time
induced magnet
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In an _______________ the electrons moving through a wire create a magnetic field.
electric current
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