One of the many little hobbies I enjoyed while growing up (and still some times now) is making paper planes. Friends would come to school with new designs that they had found in books and occasionally, if they were super rich, from online. How in the world do these gravity defying pieces of paper did it though? Let's look into it.
Though the Earth seems to be just a rock flying through space; this rock is very much active. The planet is constantly changing as it follows phenomena that far exceeds the existence of humans. Let's have a look at the structure of the Earth as well as the rock cycle.