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18 terms

major science test

for my upcoming science test :)
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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
mantle
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
crust
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
igneous
a type of rock that forms from the cooling of molten rock at or below the surface
metamorphic
Rocks changed by intense heat or extreme pressure
sedimentary
rock formed when layers of sediments were pressed and cemented together
weathering
The breaking down of rocks and other materials on the Earth's surface.
erosion
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
tsuami
Huge ocean wave caused by an undersea earthquake
earthquake
the shaking that results from the movement of rock beneath earth's surface.
volcano
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
crystal
a substance in which the particles are arranged in an orderly, geometric, repeating pattern
mineral
a naturally occurring, inorganic solid that has a crystal structure and a definite chemical composition