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for my upcoming science test :)

inner core

a dense sphere of solid iron and nickel at the center of Earth

outer core

a layer of molten iron and nickel that surrounds the inner core of Earth


the liquid/solid layer between the crust and core. the core heats it and causes convection currents which causes the plates of the crust to move


the thin rocky outer layer of the Earth that forms the continents and ocean floor. the crust is much thicker below the continents than it is beneath the oceans


a type of rock that forms from the cooling of molten rock at or below the surface


Rocks changed by intense heat or extreme pressure


rock formed when layers of sediments were pressed and cemented together


The breaking down of rocks and other materials on the Earth's surface.


The process by which wind, water, ice, or gravity transports soil and sediment from one location to another

biological weathering

Any weathering that's caused by the activities of living organisms

chemical weathering

the process by which rocks break down as a result of chemical reactions

mechanical weathering

The type of weathering in which rock is physically broken into smaller pieces


Huge ocean wave caused by an undersea earthquake


the shaking that results from the movement of rock beneath earth's surface.


a weak spot in the crust where magma has come to the surface

tectonic plate

a block of lithosphere that consists of the crust and the rigid, outermost part of the mantle


a substance in which the particles are arranged in an orderly, geometric, repeating pattern


a naturally occurring, inorganic solid that has a crystal structure and a definite chemical composition

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