By: Elizabeth Frisbey

What is Magnetism?

Magnetism are invisible lines around a magnet that attract iron or objects containing iron. They are normally letters on your fridge, but did you know they were first a rock called magnetite? They were first discovered by the ancient Greeks who also discovered that magnetite can point north when swinging freely.

Properties of magnets:

1. They attract or repel other magnets

2. Attracts objects made of iron or containing iron

3. Points north when swinging freely

Atoms inside a magnet

The atoms inside magnetized iron are facing the same direction, while unmagnetized iron have atoms that are facing random directions. This is called magnetic domains. The atoms inside other objects are facing random directions, which is why plastic and wood are not magnetic materials.
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I hope you learned a lot today!