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    • Black and white image magnetic rock with nails 'attached' to it.
    Rights: Public domain Published 12 February 2018 Size: 100 KB Referencing Hub media

    Rock that contains a large amount of iron, nickel or cobalt can become magnetic naturally, due the Earth’s magnetic field.

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      ARTICLE

      Introducing magnetism

      Magnetism is a fascinating invisible force – it influences the environment around it. A magnet is a material that can pull certain types of metal towards itself. Unlike many other forces ...

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