Why does the earth act like a huge magnet?

Question

Why does the earth act like a huge magnet?

Answer 1

Earth’s core is the source of the planet’s magnetic field. Most scientists believe that the motion of several convection cells (large blobs moved by energy, such as heat and gravity) in the molten, iron-rich material of the outer core generates and maintains Earth’s magnetism. These convection cells are also affected by Earth’s rotation on its axis. As the iron moves in the convection cells, it interacts with the magnetic field.

Answer 2

Speculation is that the center of Earth, which sonsists of a molten metal core, has circulating current.  This moving current creates the magnetic field.

Answer 3

Because it has a lot of iron in its core!

Answer 4

The EARTH within itself is the Rotor, being ratating on its axis whose one end is address as North Pole & the other as South Pole.  It is rotating at a enormous speed of 1855kph within the Solar-Space duly cutting the flux of Solar Gravitaional Influence, thereby rendering an Electro-static Charge. It being the Matter lying scattered in the solar-space, known and called as a Planet, is also subjective of Gravity. Gravity is ruled by a plain principle of either been attraction or repulsion, in scientific parlance said as UNIPOLAR. But since the EARETH is a Rotating Mass, having its Own ElectroMagneticism Worths, working on applied principle of Centrifugal & Centripetal Force of Gravity... behaves as the MAGNET too.

Answer 5

Actually, it has a lot of SPINNING iron in its core, which is spinning at a different speed than the mantle above it.

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Answer 6

To best understand Earth's magnetic field, picture a bar magnet and a bunch of iron filings dumped around it. The filings form lines running from the north pole of the magnet to the south pole of the magnet. We call these lines magnetic field lines. The compass is acting somewhat like the iron filings and is pointing towards the north pole. The actual cause of the magnetism has to do with the interior of the Earth.

     We know that at the center of the Earth lies a molten metallic iron rich core. The outer portion of this core is molten. We also believe that this core is spinning. Our knowledge of the details of exactly what causes the magnetic field is sketchy but it is believed that the metals in the core have many loosely bound electrons and that these particles can conduct electricity. It is this mass  of moving electrons which produces the magnetic field.