weathering  - The process of rock breaking apart, erosion - The process of moving weathered rock, deposition - The dropping of weathered rock, sediment - very small pieces of rock, landform - a natural land shape or feature, glaciers - Huge sheets of ice, crust - the rocky outer layer of Earth, inner core - a layer that made of solid iron and nickel, outer core - a layer that made of molten, liquid metal, plate tectonics - The theory that Earth’s crust is divided into moving plates, mountain - Continental plates moving toward each other, fault - a break in Earth’s crust, earthquake - shaking of the ground, epicenter - The point on Earth’s surface directly above the focus, volcano - an opening in the crust that allows magma to reach Earth’s surface,

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