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Is the Earth a magnet?

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Is the Earth a magnet? The Earth is actually a huge magnet, with a magnetic north and a magnetic south pole. These poles are not quite the same as the true geographical poles, and they wander about slightly. There is geological evidence that the magnetic north and south poles sometimes switch their positions completely.

The reasons for the Earth's magnetism are not really understood, but it is thought to be due to the movement of electrical charges around the Earth's core, which is probably mostly made up of iron.

The Earth's magnetic field extends out into space. The Sun and the other planets in the Solar System also have magnetic fields. Some distant stars are known to have exceptionally powerful magnetic fields.

Tags: magnet, earth

Category: Science & Tech  - ( Science & Tech Archive)

Date Added: 13 December '11

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