What is the center of the earth made up of?

Question

Is it solid or gas or liquid

Answer 1

molten Iron.

Answer 2

Journey to the Center of the Earth
http://web.ics.purdue.edu/~braile/edumod/journey/journey.htm

The Earth's Center is a Liquid Metal and this is why we have the van Allen Belts protecting us from the Sun's radiation and what also gives us the Aurora Borealis (Northern Lights). Without the van Allen Belt, the Earth would be bathed in constant Solar Radiation.

Inner Core/Outer Core Boundary: We’re now 5,155 km beneath the surface at the inner core/outer core boundary. The material both above and below us is iron, along with a small percentage of nickel. Above us the iron-nickel outer core is molten. Below us the pressure is so high that, even though it is very hot, the iron-nickel inner core is solid. Although the radius of the inner core is 1,216 km, the inner core is only 0.7 percent of the Earth by volume.

Center of the Earth: Congratulations, we’re at the center of the Earth! It’s 6,371 km back to the surface. Take a look at how far we traveled from the surface. The temperature is about 4,800 degrees Celsius. The pressure is over 3.6 million times the pressure at the Earth’s surface. However, I must warn you to hold on! Because there is approximately the same amount of Earth all around us (we’re in the center of a nearly spherical planet), Earth’s gravity here is ZERO. If there was an opening here, we would feel weightless! However, the pressure and temperature are very high, so we could not survive. It’s a good thing this is a virtual journey!

Answer 3

The core is made up of liquid iron and nickel. However, because the pressures at the center of the earth are so great, the liquid is compressed into a solid ball.

Answer 4

solid nickel and iron

I just saw what seem to be a fringe theory that the center of the core is actually uranium and that is heating up the rest of the iron core resulting in the convection currents in the liquid iron nickel outer core.

The solid inner core is actually probably the result of a cooling and crystallizing of the formerly liquid core in my opinion

I think as the liquid iron solidifies, it might give off latent heat of crystallization. There is no need for the wacky uranium theory but I do have a glimmer of a doubt.

Answer 5

the midsection of the earth is talked approximately as the middle. The center has 2 layers. The outer center is made out of liquid steel including nickel and iron. the interior center is stable nickel and iron.

Answer 6

Molten Iron Ore and other possible heavy metals.

It is very liquid.

It is not solid.

However, it is far beyond the reach of anyone as far as
making a direct physical inspection and verification.

The core of the earth is roughly 4000 miles straight down under your feet. the deepest hole dug by man as of Year 2006 has been recorded at 7.58 miles (or 40,000 feet).
So, given the depth of the center of the Earth, you would need to bore (if that was possible at all) roughly 3,992 more miles. Since the center of the Earth is reported to be molten iron, it is highly likely that the drilling apparatus being used would melt in the process.

As a result, i would not hold my breath awaiting reports of the core being breached this year.

Answer 7

The center of the earth is part of the inner core, which is a solid, possibly crystalline, iron nickel sulfide.

Answer 8

Liquid.

Answer 9

Magma - molten rock and minerals. The same stuff that flows out through a volcano.

Answer 10

molten magma, I guess you could call it a liquid solid emitting gasses.