A2. The Inner Core of the Earth is composed of nickel and iron and other heavy elements, many of which are radioactive. Lord Kelvin (of temp fame) studied this problem of the source of the earth's internal heat, but as radioactive generation of heat was yet to be discovered, his calculations were in error.
The Inner Core has a temperature of about 5800 deg C, similar to the surface of the Sun! Because of the pressure, the Inner Core of the Earth is solid.
The Outer Core has a similar composition, but, under less pressure, it is liquid.
And above this again is the magma, which drives tectonic plates, volcanoes and the like. Electrical currents generated in the cooler magma and running roughly parallel to the equator, are responsible for most of Earth's magnetic field.
[BTW, his given name was William Thomson, and upon his elevation to the peerage he chose the name of the small stream, the Kelvin that runs by Glasgow University, as his peerage name. ]
The outer core
So far as science can deduce, it must be a solid.
The earths outer core's most abundant elemant is silicon. :)
Neither. The Earth's outer core is primarily composed of molten iron and nickel. Basalt and granite are rock types found in Earth's crust, which is above the outer core.
The Liquid Outer Core.
The inner core Is solid and the outer core in liquid
Yes earths inner core is a dense ball of metal earths outer core is a layer of molten (melted) metal
no
The liquid layer of the Earth's core is called the outer core.
Depends if your talking about the inner core or the outer core: Outer core or mantle.
The solid inner and liquid outer core.
No the crust covers earths surface
no one knows
The outer core
The crust, mantle, inner core, and outer core.
asthenosphere outer core inner core and crust
the outer core is liquid; the inner core is solid