PLATE TECHTONICS
plate techictonics
Divergent Plate Boundry
Divergent plates move apart. As they move apart magma comes out of the ground and forms mountains and volcanoes. In addition, every time the plates move the create an earthquake.
Convergent Plate Boundry
Convergent plates move together and the more dense one (usually is the oceanic crust) drops and forms a trench or ditch. After all the plates move it creates an earthquake.
Transform Plate Boundry
Transform Plates slide past each other and the releases energy . When the plates rub against each other that creates an earthquake.
Convergent Plate Boundary
This type of plate boundary pushes together and crumples up forming a folded mountain range.
Convection Currents
Convection currents move the plates around . They do that because the bottom part of the mantel that is very close to the outer core heats up and rises then cools. So, then the process starts over again. Convection currents also played a role in the continental drift, because it moved the plates apart so that caused the continents to move apart to.
Techtonic Plates
Plates usually move 1 to 2 centimeters per year. Every time a plate move it causes an earthquake. Plates are located in the lithosphere. The lithosphere is the upper solid part of the mantle. The athenosphere is the lower liquid part of the mantel.