IntroductionThis page is the start of the tour which explores the surface of Earth. In this tour, we will describe different features found on the surface, plate tectonics and the result of these shifting plates. Use the navigation button at the top of the page to move through the tour. To go to the next page, just press the forward link on the navigation button. A map of the Earth shows that the 2/3 of the surface of the Earth is covered with water. Standing above the waters are the continents. These are the green, brown and white parts shown in the movie. The continents form a unique portion of the crust of the Earth known as continental crust. A second and slightly different portion of the crust of the Earth is known as oceanic crust.