Seismic waves traveling through the inner core go faster than those through the outer core.
When eartquakes erupt only certaing wavelengths can travel through both liquids and solids, so when the scientists measure to see at what point in the earth the waves refract they can then tell what parts are solid and what parts are liquid
nope i dont know really
The inner core of the Earth is a solid iron-nickel alloy with a radius of about 1220 kilometers. It is the densest layer of the Earth and produces the planet's magnetic field through the movement of molten iron in the outer core. The inner core is believed to have formed as a result of solidification of the outer core due to decreasing temperatures and increasing pressure.
The Earth is composed of four main layers: the inner core, outer core, mantle, and crust. The inner core is solid iron and nickel, surrounded by a liquid outer core of the same materials. The mantle is composed of molten rock, while the crust is a thin, solid layer that forms the Earth's surface.
When scientists give an answer to a problem, they will test it as many ways as they can and never claim true knowledge, only the fact that a better theory is currently unavailable, this is the basis of the scientific method. About the Earth's inner core- the main way that they have to think about the inner core is by seismic waves. When an earthquake happens in one part of the world, its massive jolt sends a shock wave around the globe. This shock wave has to travel through different materials as it passes. By gauging the speed of the waves and other analyses, they can have a good guess as to what is down there based on the properties of known materials. This is not always foolproof though, as as recently as a couple of months ago, a group of researches found a new property of liquid iron under intense pressure (super-solidified liquid iron) that they didn't know about, something about its magnetic properties. The reason that it is solid is due to the sheer pressure the iron will be under. Gravity is pulling the entire Earth into its centre. That is an incredible amount of weight, and then the rotation which causes massive friction creates a massive amount of heat- ergo solid liquid iron.
Scientists use the difference in density between the inner and outer core as evidence that the inner core is solid. This was proven using seismic waves traveling through the earth.
When eartquakes erupt only certaing wavelengths can travel through both liquids and solids, so when the scientists measure to see at what point in the earth the waves refract they can then tell what parts are solid and what parts are liquid
The inner core - the centre of earth - is solid and about 780 miles (1,250 km) thick. The inner core may have a temperature up to about 13,000°F (7,200°C = 7,500 K), which is hotter than the surface of the Sun. The inner core (which has a radius of about 750 miles (1,228 km) is solid. The core is a dense ball of the elements iron and nickel.
Earth is the planet with a large solid core consisting mainly of iron and nickel. This core is divided into a solid inner core and a liquid outer core, which is responsible for generating the Earth's magnetic field.
The inner core of the Earth is primarily composed of solid iron and nickel. It is a solid metallic sphere rather than a gaseous one, as the intense pressure and high temperatures prevent the presence of gases in this region.
The inner core is solid, but the mantle is the only layer of Earth that flows in currents. These currents are caused by convection. If you don't know what convection is then you might as well look it up because I don't have a good definition.
Dont know exactly i know that heat gives a substance more energy if that helps any.the pressure from everything around it causes it to compress into a solid. >
Earth has four main layers: the inner core, outer core, mantle, and crust. The inner core is solid iron and nickel, the outer core is liquid iron and nickel, the mantle is mostly solid rock, and the crust is the Earth's outermost layer where we live.
nope i dont know really
They do not have evidence. In fact most pf things are not even true. The only thing they say they did was put a stick on the ground and with a shockwave they knew what was inside the earth. My opinion is that the core is not what scientists say it is. Due to the fact that we know more about the moon than our own planet.
Scientists study seismic waves and magnetic fields to determine the composition and properties of Earth's core. They use data from earthquakes and magnetic measurements to infer that the inner core is solid iron and nickel, while the outer core is liquid iron-nickel alloy. Deep drilling and experimental simulations also provide insights into the Earth's core composition.
The inner core of the Earth is a solid iron-nickel alloy with a radius of about 1220 kilometers. It is the densest layer of the Earth and produces the planet's magnetic field through the movement of molten iron in the outer core. The inner core is believed to have formed as a result of solidification of the outer core due to decreasing temperatures and increasing pressure.