The outer layer of the earth where we live. - Crust, The largest layer of the earth. Made of magma and molten rock. - Mantle, Liquid Rock. - Magma, The layer of the earth that is made of liquid nickel and iron. - Outer Core, The layer of the earth that is made of solid nickel and iron. The hottest layer. - Inner Core, When plates push together. They cause mountain ranges on land and trenches in the ocean. - Convergent Boundary, When plates move apart. They form volcanoes on land and mid-ocean ridges underwater. - Divergent Boundary, When plates slide past each other horizontally. These types of boundaries cause earthquakes. - Transform Boundary, The edges, or boundaries, of plates. - Faults, Large continent sized blocks that are driven by heat to move slowly about Earth’s surface. - Plates, Forms when magma cools on the surface of the earth or deep within the earth. - Igneous Rock, Formed when layers of sediment are cemented together. - Sedimentary Rock, Formed from years of heat and pressure. - Metamorphic Rock, When rocks and other materials on the Earth’s surface are constantly being broken down. - Weathering, When materials, like soil or rocks, are moved by wind and water. - Erosion, When sediments are dropped off in a different location. - Deposition, The remains of plants and animals preserved in rocks. - Fossils,

Geology

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