Henry's glaciers Tectonic plates and stuff

Tectonic plates

                 Tectonic plates are like the skin of earth. These plates make the top layer of earth called the lithosphere under the lithosphere is the asthenosphere the asthenosphere is a layer of molten rock. All the continents were separated because of tectonic plates. Seven of the major tectonic plates include, African, Antarctic, Eurasin, North American, South American and India-Australian. Tectonic plates are around 62 miles thick. There are two main types of tectonic plates: oceanic and continental. Divergent Boundaries - A divergent boundary is one where two plates are getting pushed apart. The area on land where the boundary occurs is called a rift. New land is formed by magma pushing up from the mantle and cooling as it reaches the surface. Divergent Boundaries - A divergent boundary is one where two plates are getting pushed apart. The area on land where the boundary occurs is called a rift. New land is formed by magma pushing up from the mantle and cooling as it reaches the surface.