How our planet was made!!!

Our planet was created about 4.27 billion of years ago in a very simple way. Around that time a supernova exploded (a supernova is like a gigantic star, its like 46 times bigger than the sun). When it exloded it sent out a wave of matter whichi was attracted by our suns gravity. Once it was attracted to our sun, the matter started whirling around and clashing togehter to form burning bodies of hydrogen and helium. Then the suns gravity made it able to gather gaseous clouds of matter which started to clash into each other, and when they did they stuck together and became extremly hot. After a while planets and astroids would start to form and eventually earth was made. But at first it was a massive ball of hot rock that was just crumpled together, and after a long time it cooled down and water was able to form because of our atmosphere that was created in the process from all the gases floating that were realeased from the center. As the earth cooled all the metals sunk to the center, thus creating the earths iron core, and it became round beacause of gravity. The center contained water vapor, carbon dioxide, sulfur, nitrogen, argon and chlorine, when it speud up out from the center an atmosphere was made, and thus waster was formed later on. The reason for us having an atmosphere and not the other planets it was because earth was lucky to get the collisions it got and the perfect distance from the sun to make carbon dioxide and oxygen (our atmosphere). So were actually lucky that our planet is even here.