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planet earth infos - Printable Version

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planet earth infos by super-schaf on 02-02-2006 at 09:30 AM

i am in skool right now and my teacher said i can go on her laptop for ten mins so it got to be quick. we have the theme planet earth right now and i need a website were i can get infos about how it was made.


plz help!!!!:P:P:P


super-schaf


RE: planet earth infos by -Bogan- on 02-02-2006 at 09:39 AM

http://en.wikipedia.org/wiki/Earth

and this info

Birth of the Earth

    Initially, scientists thought that the Earth was formed by a gentle 'rain' of dust and small particles slowly accumulating on the then small Earth's surface. And after a while it would have began to heat up due to the slow decay of radioactive elements, and melt, forming a bouyant crust and dense core. However modern views lean more towards the theory that the Earth grew relatively quickly (100,000 years to 1 million years rather than 100 million to 1000 million years) through larger collisions. The Earth was probably molten, or at least partially, through its period of growth, allowing heavy materials to sink towards the centre, forming 'cores' and lighter ones to float to the surface. This process is called differentiation.

    Many astronomers currently believe that slightly less than 4,500 million years ago, whilst the Earth was still hot and young, a massive, violent off-centre collision with another large object led to large amounts of material being ejected into the Earth's orbit. This material cooled down and formed what we know as the Moon a few years later. According to this hypothesis, the core of this unknown object would have been incorporated into the Earth's mantle, thus changing the Earth's composition.

from http://www.solarspace.co.uk/Earth/earth.php


RE: planet earth infos by super-schaf on 02-02-2006 at 09:50 AM

cool thanks alot! you have safed me from a F !