Yes the core of the Earth is hotter than the surface of the Sun,
12000 degrees celcius.
The
Core
The inner part of the earth is the core.
This part of the earth is about 1,800 miles (2,900 km) below the
earth's surface. The core is a dense ball of the elements iron and
nickel. It is divided into two layers, the inner core and the outer
core. The inner core - the center of earth - is solid and about 780
miles (1,250 km ) thick. The outer core is so hot that the metal is
always molten, but the inner core pressures are so great that it
cannot melt, even though temperatures there reach 6700ºF (3700ºC).
The outer core is about 1,370 miles (2,200 km) thick. Because the
earth rotates, the outer core spins around the inner core and that
causes the earth's magnetism.
What does the core consist
of?
Inner
core:
It is 3,200 - 3,960 miles (5,150-6,370 km) below the earth's
surface and mainly consists of iron, nickel and some lighter
elements (probably sulphur, carbon, oxygen, silicon and potassium.
The temperature in the inner core is about 9032 - 10832 ºF
(5000-6000 ºC). Because of the high pressure, the core is solid.
The average density of the core is about
15g/cm³.
Outer
core:
The outer core is at 1,800 - 3,200 miles (2,890-5,150 km) below the
earth's surface. The outer core is liquid and mainly consists of
iron, some nickel and about 10% sulphur and oxygen. The temperature
in the outer core is about 7200 - 9032 ºF (4000-5000ºC). The
density of the outer core is between the 10g/cm³ and 12,3g/cm³. The
outer core and inner core together cause the earth's
magnetism.
Full size
Earth
Cutaway
Here, sections of the Earth have been removed to show its internal
structure. Image
By:
Colin Rose,
Dorling
Kindersley
What Influence
does the Core have?
Because the
core is so hot, it radiates a natural heat to the upper layers.
Because of this a current of heat comes into being. Those are also
known as the convection currents. The convection currents cause the movement of
the tectonic plates. This movement is called plate tectonics. The outer core and the inner core
together cause the earth's magnetism. Because the earth rotates,
the outer core spins, the inner core doesn't spin because it's
solid. This gives a kind of dynamo effect and causes the earth's
magnetism. Magnetism has been used by sailors to find their way on
earth for thousands and thousands of years. Magnetism also
influences electro-particles outside the atmosphere of the earth,
up to more than 37,000 miles (60,000 km) into space