Compasses

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A compass can help you find your way. But how does a compass work? Well, the needle found inside a compass is actually a magnet. It is attracted to Earth's magnetic field. All compass needles point north. Except when you hold a magnet near the compass. Because the magnetic field of the magnet is stronger than the magnetic field of Earth, the compass needle is attracted to the magnet's magnetic field instead of Earth's magnetic field. Then the compass needle might not point north anymore!

(Jonathan April 15, 2009)

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