were does the energy come from in order to keep the earths magma molten?

Question

Were does the energy come from in order to keep the earths magma molten? Why doesnt it cool down to the ambient temperature that is common on the surface?

Answer 1

Most of the Earths internal heat comes from radioactive decay of Potassium 40 isotope. Its not super at liberating heat (like say U235 decay) but ther are shed loads of it in the Earth, its been happening for a long time and the Earth is well insulated so the heating is noticeable. Infact it generates so much heat that the Earth should be molten. It drives plate tectonics which act to release the heat and keep the planet from meltdown..

Answer 2

There are nuclear reactions happening around us all the time. That is why if you turn on a geiger counter you will experience some background radiation. There are millions of different isotopes of different elements in the earth that have different radioactive decay series. As these elements decay over time and emit their radiation, heat builds up within the mantle and core. Thus we have a molten core, and a gravitational field, and a way for magma to flow out of the ground, a reason for Hot Springs, the ability for the crust to move on top of the mantle, a way for metamorphic rocks to form.. etc... You get the idea.

Answer 3

nuclear energy.
The energy comes from decaying substances such as Potassium-40.

Gradually, however, the Earth would have cooled off and become a dead rocky globe with a cold iron ball at the core if not for the continued release of heat by the decay of radioactive elements like potassium-40, uranium-238 and thorium-232, which have half-lives of 1.25 billion, 4 billion and 14 billion years, respectively.

So, the reason it doesn't cool down is because the energy is constant caused by the potassium, uranium and thorium that was inside the earths core ever since its creation. Therefore, the temperature of the core will remain so until it runs out of nuclear material to generate heat that keeps our world going.

Answer 4

a million. The rigidity will strengthen as you bypass in direction of the middle. rigidity is observed with the aid of warm temperature, and for this reason the outer middle is molten magma. even if, because it receives closer and closer the rigidity will change into extra extreme and at a level - the interior middle - it is going to change into good, quite warm, metallic. 2. No, our planet is a planet, and stars are stars. they're truly different in both composition and houses. Our planet has no longer and under no circumstances will follow the degrees in existence a megastar does. (about Earth sprouting existence: Earth has a organic stability - being no longer too close and under no circumstances too a procedures from the solar to create existence.) 3. this question is slightly complicated. if you're concerning your first question - then convinced. except, the rigidity of being lower than the entire earth is so a lot more desirable than that of being lower than an ocean of water. 4. no one can quite try that, because drilling to the middle isn't a possibility as of yet. i do not have self belief we are able to even drill previous the mantle (after the crust) seeing that - it is liquid.

Answer 5

the energy that keeps the magma molten comes from the core the internal core in the earth where you will find alot of gases down there and it never cools down because the pressure of the heat that keept the magma molten keeps controling the magma temprature even after it come out to the surface it actually take alot of time to cool down anif you throw it in the water it boils the water and the magma because a hot piece of metal and to explin why it doesn cool down once it gets up to the surface for example if you have a poiled hot water and you put the hot water in a cup then in the fridge it will make the fridge hot for a while then it will take time to cool down even its in a fridge.

Answer 6

Most of the energy is from the impacts 4.5 billion years ago which brought most of the material to earth. The impact of meteors carries enough frictional and compressive energy that the impacting material caused the already gathered material to melt. The earth is so thick that it actually insulates the molten core well enough to keep it from solidifying over these few billion years. Some of the energy is from fission of radioactive materials

Answer 7

because it is circleing around a very solid very very hot nickle and iron core. witht he immense pressure of the earth bearing downon it the core cant melt so it superheats and in turn keep the magma hot. and the flowing of the magma is what magnatizes the core keeping us moving and keeping our gravity and magnatism working right.