· The dominant theory on the formation of the Earth is of course the scientific model. The scientific model looks at how all of the planets, and all of the stars, at one point coalesced from one molecular cloud (known as a nebula). Supernovae are the only things we know about in the universe that are capable of producing elements that are heavier than iron. These events are absolutely huge and involve the burning-out of a star. Given that heavy elements exist in our sun and on our Earth, then the debris field is considered to have come from a supernova. Earth is simply a collection of materials from outer space that were initially created by supernovae - and before that, the big bang.
· Clouds of gas and other bits of debris that exist within space have their own centers of gravity, and this means that the debris field all collapses to one central point within the cloud. This process is referred to as planetary accretion. As gravity starts pulling all of the material in and parts of the mass collapse, angular momentum becomes preserved and primary rotations start. The solar system and all of the planets all rotate because of the conservation of their angular momentum around the numerous gravitational centers.
· The only other major theory is that it was created by God. People believe in 'creationism', which means that God created the Earth and all of its living things in six days, and rested on the seventh. This is not based on science but on the Bible, the Christian holy book.
· Other theories generally involve the Earth being created instantly due to some kind of deity/God using his or her powers to create everything.
· Clouds of gas and other bits of debris that exist within space have their own centers of gravity, and this means that the debris field all collapses to one central point within the cloud. This process is referred to as planetary accretion. As gravity starts pulling all of the material in and parts of the mass collapse, angular momentum becomes preserved and primary rotations start. The solar system and all of the planets all rotate because of the conservation of their angular momentum around the numerous gravitational centers.
· The only other major theory is that it was created by God. People believe in 'creationism', which means that God created the Earth and all of its living things in six days, and rested on the seventh. This is not based on science but on the Bible, the Christian holy book.
· Other theories generally involve the Earth being created instantly due to some kind of deity/God using his or her powers to create everything.
