I know how the earth was created.
Once upon a time, a long, long time ago the earth was a huge jawbreaker. One day God decided that he wanted to eat it. So he stuck it in his mouth and began to suck. He sucked and he sucked, but like all jaw-breakers it changed very slowly. So God just kept sucking. Frustrated by the slow progress he took it from his mouth and glared his wrath upon it. Then a sudden understanding came to him. He realized he was looking at a most precious piece of art. His jawbreaker had transformed into a miraculous, half eaten, masterpiece. "I will name you Terra Firma, for you are exceedingly hard to change," he said. He licked it and stuck it into space. Then he proceeded to create the other planets in our galaxy. But the earth was his first so he saved something special for it. He sent his children to live their mortal lives on the surface of the Terra Firma or Ridiculously hard jawbreaker as I like to call it.

If you want to know how he created the oceans just think about how you change a jawbreaker.