Earth’s rotation also churns up the molten metal, generating electrical currents. Our planet’s magnetic field is similar to ...

Bar magnets and horseshoe magnets are two of the ... If you bring a north pole and a south pole together, they will attract. Earth's core contains liquid iron which moves around.

A compass contains a small bar magnet on a pivot so that it can rotate. The compass needle points in the direction of the Earth's magnetic field, or the magnetic field of a magnet. place the ...