There are certain high-energy particles electrically charged particles that are emitted from the sun and travel toward our planet. These particles are called Cosmic Rays. If they were allowed to strike the earth, they would kill all life on the planet. However, the earth's magnetic field deflects the vast majority of these particles, keeping them from hitting the planet. If the magnetic field was too small, it would not deflect enough of these Cosmic Rays. If the field was too strong, it would deflect the cosmic rays, but it would cause a deadly magnetic storm that would make life impossible!
It is Earths' "Magnetosphere".
The earths magnetic field results from deep in the earths core. Magnetic conduction from within the earths core is believed to be the cause of this.
map earth upside down
earths magnetic field is generated by the circulation of liquid metal.
The convection that causes Earth's magnetic field happens in Earth's molten outer core.
This is known as magnetic reversal when earth's magnetic poles change places.
It is made by the movement of the earths core
The Earth's Magnetic field.
Earth's magnetic field is strongest at the magnetic North Pole and the magnetic South Pole.
Scientists believe that it is the movements in the liquid outer core that create the magnetic field. Earth's magnetic field affects the whole planet.
Earths magnetic orientation is locked into the rock when the rock cools
No. Earth's magnetic field is produced by currents in the liquid outer core.