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Heavy radioactive elements sunk to the center of the earth when it was molten because they were the most dense. Things like Uranium are responsible for the ongoing heat of the earth's core.
Tyreek Marquardt
Wiki User
∙ 9y agoThe Earth's core is hot because of the various sources of heat underneath the Earth's mantle. The most important source of heat is the continuous nuclear fission of elements that contribute largely to the high temperatures found in the core.
Wiki User
∙ 14y agoMost of Earth's interior heat is residual, a remnant of the processes of formation and layer separation. Other heat is derived from the decay of radioactive elements. Earth materials also act to insulate and retain the heat from remnant processes and decay of radioactive elements.
Wiki User
∙ 14y agoThe heat present in the Earth is due to several factors.
The first source of heat is from the remnants of heat from impacts with planetesimals early in Earth's history. Impacts with large bodies such as these (including the impact which led to the formation of the moon) trapped the thermal energy of the collision in the surrounding rock of the planet, and may have been enough in certain circumstances to completely melt the early Earth.
The second source of heat is also a remnant of an early Earth event known as the Iron Catastrophe. With much of early Earth still molten, denser metals, particularly iron and nickel, migrated to the center of the planet. Tremendous amounts of frictional heat was created, enough to completely melt the planet once again.
The third source of heat in the Earth is from compression due to gravity.
The fourth and final source of heat in the Earth is from the decay of radioactive elements. This source of heat is gradually declining due the decreasing amounts of radioactive isotopes, the decrease being caused by the decay.Wiki User
∙ 12y agonatural nuclear waste
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What does earth look like inside?
The inside of the Earth has four different layers. The core is the earths heat source, a ball of lava. then there is the outer core, a bit cooler. finally comes another layer of mantle and then the crust (which is the land we walk on).
Why is phoebe cates so hot?
That might be your opinion but I think that so
Why are earthworms not usually on the surface of the ground on a hot day?
because they like moist areas so if it is hot the top layer of the soil is not that moist so they go deeper
What words can you find in the word rhinoceros?
rhine, core, in, so, no, sore, son, sire, cone, hire, her, his,
Which is warmer tempid or hot water?
The warmer of the two would be hot water. Tepid water is nearly body temperature, so it is considered lukewarm. That means that hot water is hotter than lukewarm water.
Is earths core a solid?
no the core of the earth is not solid its pretty much a liquid, since the middle of the earth is so hot, the core is like a lava substance.
What metals makes up the core?
The outer core is a layer of the Earth, the second to last layer. It creates the Earths Magnetic field by moving around the inner core. There are two metals that make up the outer core, these two metals are iron and nickel. The inner core is so hot that it melts the nickel and iron turning it into liquid magma.
What if us as people from earth decided to mine iron and nickel from the earths core?
1. we would never be able to get down to the bottom to the core because we dont have the machineary and if we got past the earths crust hot molten lava would pour out and destroy the country. 2. if we mined the earths core it would be so hot no thing could survive it and we couldn't mine it because it is extremely hard
Why the world will end of 2012?
because most scientist believe that earths core will get so hot that every volcano will explode and cover the whole world with lauve.
What does earth look like inside?
The inside of the Earth has four different layers. The core is the earths heat source, a ball of lava. then there is the outer core, a bit cooler. finally comes another layer of mantle and then the crust (which is the land we walk on).
How is the structure of earth and the structure of a peach similar?
Sorry. The earths core reminds me of an apple. So here goes. In the center of the apple, there is a core, and that is the hardest a biggest part. So that is the earths core. The crust is the skin of the apple, and that is also the thinnest. The rest is the outer core and mantle.
Is earths outer core liquid or solid?
So far as science can deduce, it must be a solid.
What is the earths outter core composed of?
iron and nickel is the answer and so is the inner core. the inner and the outer and together but the outer core is liquid and the inner core is solid
What causes earths dense core?
Because the gravity is pushing the core together more so its more dense.
Why is the inner core of the earth solid?
It is solid because there is so much pressure that it makes it really dense.
What is a body wave that can penetrate the earths core?
It's called the P- Wave
Why is the core in the center of the earth hot?
Because, there is so much pressure the core get's extremly hot, and there is lava, and sometimes its yellow.
