What is the Earth's core made of?

Answer 1

The Earth's core is two distinct layers, the liquid outer core which is approx. 2250 km thick and the solid inner core which is approx. 1220 km thick. It is believed, due to seismic wave studies, that thecomposition of the Earth's core is metal not rock, that being mainly iron along with minor amounts of silicon, sulfur, and nickel.

Answer 2

Most of these answers are wrong.

The earth's core is made of two distinct layers. Compositionally, both layers are composed primarly of iron and nickel and other heavy metals. However, physically, they are completely distinct. The outer core is a liquid, and the flow in this heavy metal liquid is what creates earth's magnetic field. However, due to the higher pressure, which allows minerals the be solid at higher temperature, the inner core is a solid. Therefore, the solid metal inner core is surrounded by a liquid metal outer core.

Answer 3

The average density of Earth is 5515 kg/m3, making it the densest planet in the Solar system. Since the average density of surface material is only around 3000 kg/m3, we must conclude that denser materials exist within Earth's core. Further evidence for the high density core comes from the study of seismology. In its earliest stages, about 4.5 billion (4.5×109) years ago, melting would have caused denser substances to sink toward the center in a process called planetary differentiation (see also the iron catastrophe), while less-dense materials would have migrated to the crust. As a result, the core is largely composed of iron (80%), along with nickel and one or more light elements, whereas other dense elements, such as lead and uranium, either are too rare to be significant or tend to bind to lighter elements and thus remain in the crust (see felsic materials).

Answer 4

molten iron is the correct answer. The iron core is what gives the Earth its magnetic field too.

Answer 5

Magma..under pressure, intense heat is generated and forces this molten rock to the surface, via volcanoes, we see it as lava.

Answer 6

melted metal and very,very.very hott lava

Answer 7

molton iron (and i think some nickel and some cobalt)

Answer 8

Chalk...Or maybe gold.

Answer 9

Sunshine and farts.