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science words

continental drift The hypothesis tha all the continets slowly move across the earth surface
deposition the by which sediment settles out of water or wind carrying it.
earthquake the shacking that results from the movment of rock beneath earths surface
erosion The destructive process which water or wind loosen and carry away fragments of rock
fault A break in the earth's crust where slabs of rockslip past each other
fossil A trof an ancient organism that has been preserved in rock
geology The study of planet earth
igneous rock A type of rock that forms at the cooling ofmolten rock at or below the surface
lava Liqid magma that reachesthe surface; also therock formed whenliqid lava hardens
magma The molten mixture of rock-forming substances,gases and water from the mantle
metamorphic rock A type of rock that forms from an existing rock that is changed by heat,pressure or chemi cal reactions
mineral a naturally occuring, ignoric solid that has crystal structure and definate chemical composition
Pangaea The name of single of a single landmass that broke apart 200 million years ago and gave rise to earth continets today
plate tectonics The theory that pieces of earth's lithosphere are in constant motion driven by convection current in the mantle
Richter scale A scale that mesures seismic waves as neasured by a pparticular type of mechanical seismograph
volcano a weak spot in the earths surface where magma has come to the surface
glacier an extended mass of ice formed from snow falling and accumulating over the years and moving very slowly, either descending from high mountains, as in valley glaciers, or moving outward from centers of accumulation, as in continental glaciers.
hydrosphere the water on or surrounding the surface of the globe, including the water of the oceans and the water in the atmosphere.
humus the dark organic material in soils, produced by the decomposition of vegetable or animal matter and essential to the fertility of the earth.
lithosphere a rigid layer made up of the uppermost part of the mantle and crust
permeable capable of being permeated
soil the portion of the earth's surface consisting of disintegrated rock and humus
weathering material used as a weather strip.
Created by: beanybaby