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The earth is like a ball with a big magnet in it.

The earth is like a big magnet.

A magnet attracts iron.

She has something of a magnetic force.

An electric current can generate magnetism.

The lines of this field run between magnetic north and magnetic south at the two poles.

This may be because they could not use the earth's magnetic field.

So there is a magnetic field around earth.

But the earth's magnetic field is very weak.

Of course, magnets have a magnetic field around them.

But where is this compass?

Do they have something like a compass?

Pigeons can find their way home with the help of the Earth's magnetic field.

The magnetite is attracted to the earth's magnetic field.