What is the source of earth's interior energy?
368743
When the earth formed, it was basically all just really hot rock.  So hot, in fact, that it melted.  When the rock melted, the heavier elements (iron and nickel) sunk towards the core of the earth.  This sinking of heavy elements transferred a lot of gravitational potential energy into heat energy.  The same can be seen today.  If you drop something heavy into a bucket of water, after you drop it enough, the water itself warms up.  This heat energy from the formation of the planet was the primary source of the heat of our planet.  However, another major source of heat today is the breakdown of radioactive elements inside the earth.  Both of these contribute to the heat the Earth generates.
102507
Saturn's interior is similar to Jupiter's, having a rocky core at the center, a liquid metallic hydrogen layer above that, and a molecular hydrogen layer above that. Traces of various ices are also present. Saturn has a very hot interior, reaching 12000 K at the core, and it radiates more energy into space than it receives from the Sun. Most of the extra energy is generated by the Kelvin-Helmholtz mechanism (slow gravitational compression), but this alone may not be sufficient to explain Saturn's heat production. An additional proposed mechanism by which Saturn may generate some of its heat is the "raining out" of droplets of helium deep in Saturn's interior, the droplets of helium releasing heat by friction as they fall down through the lighter hydrogen.
239404
This is suppose to be common sense by now well unless you're 6 yr old then that's different. So I guess you need read this:\n\nsolar energy, any form of energy radiated by the sun, including light, radio waves, and X rays, although the term usually refers to the visible light of the sun. Solar energy is needed by green plants for the process of photosynthesis, which is the ultimate source of all food. The energy in fossil fuels (e.g., coal and oil) and other organic fuels (e.g., wood) is derived from solar energy. Difficulties with these fuels have led to the invention of devices that directly convert solar energy into usable forms of energy, such as electricity. Solar batteries, which operate on the principle that light falling on photosensitive substances causes a flow of electricity, play an important part in space satellites and, as they become more efficient, are finding increasing use on the earth (see solar cell). Thermoelectric generators convert the heat generated by solar energy directly into electricity (see thermoelectricity). Several projects have produced electricity on a large scale by using the solar energy available in desert areas. In one system, large numbers of solar batteries generate electricity for Coconut Island, off the coast of Australia. In another, oil flows through pipes that are set in reflecting parabolic troughs that can trap the heat from sunlight falling on them. The heat from the oil is then converted into electricity (see power, electric). Heat from the sun is used in air-drying a variety of materials and in producing salt by the evaporation of seawater. Solar heating systems can supply heat and hot water for domestic use; heat collected in special plates on the roof of a house is stored in rocks or water held in a large container. Such systems, however, usually require a conventional heater to supplement them. Solar stoves, which focus the sun's heat directly, are employed in regions where there is much perennial sunlight.\n\nAlso there are tons of info on this on the web just go to Yahoo search or Google and type in Solar Energy. It's not that hard.
566231
It is mainly from residual heat from when the earth first formed & the breakdown of radioactive elements w/in the earth. Pressure from the overlying material can also create heat.\n\nThe earth is actually cooling but it will take a very long time for it to "completely" cool.
1090621
There are many different things inside the earth.\n\nThe heat caused by the extreme pressure makes it semi liquid.  The heavier metals tend to work there way to the center.  While the lighter elements stay closer to the surface. \n\n In short, there is molten rock and metal inside the earth.
373288
The ultimate building block of this universe is energy.
646459
mainly CO2, which is why scientists are researching the planets to find out effects/ways to prevent global warming. it is often called "earths evil twin"
241725
The ultimate source of energy in all. living systems is the sun
304041
Exactly none. There is a finite amount of energy stored on the planet in the form of fossil fuels. Burning it releases this energy. You cannot add more. There has been heat RELEASED by the burning of fossil fuels onthe planet, which many people believe causes global warming. The only heat energy added to the planet is solar energy.
1105028
read this\n\nhttp://en.wikipedia.org/wiki/Energy
347168
Energy that enters the system from the surroundings.
608387
The Earth's center contains a lot of molten iron; due to Earth's rotation, it rotates too, thus generating a magnetic field. It's bit more complicated, but in a nut that's the explanation.
1165052
all the energy that is in the universe came from the Big Bang and the universe today is expanding, though a lot slower than before.\n\nHow do we know this? Astronomers have been using spectrometers to chart the temperature from the center of the universe onwards. As you may already know, the farther we look into space, the farther back in time we are looking. What we found, astonishingly, is that the temperature of the universe was hotter before and is slowly reducing. \n\nRight now the temperature is 3 Kelvin (-270 degrees Celsius) in deep space (deep space defined as one atom per cubic kilometer). It shows that energy is continually dissipating, leading to the expansion of the universe, which is leading to a slow decrease in temperature. So there is overwhelming evidence stating that all energy in universe came from the Big Bang and is contained.
860799
The core generates heat from the long-lived radioactive isotopes in it.  At the temperature gradient which would be big enough to carry it all away by conduction, most of the mantle would be above its melting point.  So as the heat built up in the early part of the Earth's history, the mantle softened and began to convect.  We now have a stable temperature profile from the core to the crust, and a stable balance between conduction and convection to carry away all the heat exactly as fast as it is generated.
219383
Nothing. Even geothermal energy (heat from the center of the Earth) originally came from the Sun.
981269
It's from radioctivity and friction.  The gas giants also create more heat than they recieve from the sun.  The sun is nowhere the near the only source of energy in the solar system.
250338
I would guess the sun would be the energy in SOLAR powered anything. Solar = sun