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crater a large, bowl-shaped cavity in the ground or on the surface of a planet or the moon, typically one caused by an explosion or the impact of a meteorite or other celestial body.
lithosphere the rigid outer part of the earth, consisting of the crust and upper mantle.
mantel a mantelpiece or mantelshelf.
crust the layer above the in and outer layer and the mantle of the earth
asthenosphere the upper layer of the earth's mantle, below the lithosphere, in which there is relatively low resistance to plastic flow and convection is thought to occur.
mesosphere the region of the earth's atmosphere above the stratosphere and below the thermosphere, between about 30 and 50 miles (50 and 80 km) in altitude.
core the core is the inner part of the earth
ejecta material that is forced or thrown out, especially as a result of volcanic eruption, meteoritic impact, or stellar explosion.
meteoroids a meteor that survives its passage through the earth's atmosphere such that part of it strikes the ground. More than 90 percent of meteorites are of rock, while the remainder consist wholly or partly of iron and nickel.
comet a celestial object consisting of a nucleus of ice and dust and, when near the sun, a “tail” of gas and dust particles pointing away from the sun.
asteroid a small rocky body orbiting the sun. Large numbers of these, ranging in size from nearly 600 miles
strata a layer or a series of layers of rock in the ground.
half life the time taken for the radioactivity of a specified isotope to fall to half its original value.
plate tectonics a theory explaining the structure of the earth's crust and many associated phenomena as resulting from the interaction of rigid lithospheric plates that move slowly over the underlying mantle.
divergent boundary when the two plates move away from each other
mid ocean ridge A mid-ocean ridge is an underwater mountain system formed by plate tectonics.
oceanic crust the relatively thin part of the earth's crust that underlies the ocean basins. It is geologically young compared with the continental crust and consists of basaltic rock overlain by sediments.
matter physical substance in general, as distinct from mind and spirit; (in physics) that which occupies space and possesses rest mass, especially as distinct from energy.
hydrosphere all the water
biosphere all the air
cryosphere The cryosphere is those portions of Earth's surface where water is in solid form, including sea ice, lake ice, river ice, snow cover, glaciers, ice caps, ice sheets, and frozen ground. Thus, there is a wide overlap with the hydrosphere.
lithosphere the rigid outer part of the earth, consisting of the crust and upper mantle.
geosphere all the rocks and mountians
atmosphere all the air oxygen
open system where matter and energy go in and out
closed system where nothing goes in or out
Created by: kiaraskie