|
Earth's
Magnetic Field |
 |
Earth's Magnetic Field
A powerful magnetic
field surrounds the earth, as if the planet has an enormous bar magnet
embedded within its interior. The S and N on the magnet indicate the
orientation of the earth's magnetic field. Because the opposite ends of
magnets attract, the northern end of magnets on the earth are attracted
to the southern end of the earth's magnetic field, which is called
magnetic north. Scientists believe that convection currents of charged,
molten metal circulating in the earth's core are the source of the
planet's magnetic field.
|
