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AMS 8th Gr. Science

Volcanos

QuestionAnswer
FOLDED MOUNTAIN/MONTANA PLEGADA a mountain that forms as continental crust is compressed and rocks bend into large folds/una montagna que se forma cuando la corteza continental es comprimida y las rocas se doblan en grandes plieges
FAULT-BLOCKED MOUNTAIN/MONTANA DE BLOQUES DE FALLA a mountain that forms as blocks of rock move up or down along normal faults in areas where the lithosphere is being pulled apart/una Montana que se forma cuando bloques de roca se mueven hacia arriba o hacia abajo a lo largo de fallas normales en las area
VOLCANO/VOLCAN an opening in the crust through which molten rock, rock fragments, and hot gases erupt; a mountain built up from erupted materials/una bertura en la corteza a traves de la cual la roca fundida, fragmentos de roca y gases calientes hacen erupcion; una Mont
LAVA molten rock that reaches a planet’s surface through a volcano/roca fundida que llega a la superficia de un planeta a traves de un volcan
PYROCLASTIC FLOW/CORRIENTE PIROCLASTICA a dense cloud of superheated gases and rock fragments that moves quickly downhill from an erupting volcano/una nube densa de gases sobrecalentados y fragmentos de rocas que desciende rapidamente de un volcan en erupcion.
SHIELD VOLCANO volcano shaped like a broad, flat dome.
CINDER CONE VOLCANO steep, cone-shaped hill formed by the eruption of cinders and other rock fragments that pile up around a single crater.
COMPOSITE VOLCANO cone-shaped volcano built up layers of lava and layers of rock fragments.
LAVA FLOWS lava moves slowly enough that people can move away and not be hurt
VOLCANIC ASH near volcanic eruption, heavy because it is made of tiny pieces of rock.
MUDFLOWS landslides that occur when loose rocks and soil are mixed with water
LANDSLIDES part of a volcano can collapse and start a landslide – a rapid downhill movement of rock and soil; can cause a tsunami
STEAM EXPLOSIONS relatively uncommon, devastating; occurs when magma comes near water or into contact with it.
GEYSER/GEISER a type of hot spring that shoots water into the air/un tipo de fuente termal que dispara agua al aire.
DEEP-SEA VENTS hot springs that form at spreading centers in the ocean.
MAGMA molten or hot liquid rock beneath the earth's surface. Produces crystals when it cools and hardens. Fast cool=small crystals. Slow cool=large crystals
CRATER Found at the top of the volcano; a cuplike depression that surrounds the vent.
VENT centeral opening of a volcano
MAGMA CHAMBER areas where heat builds up or pressure is lowered
SILICA main part of volcanic rock. amount of silica determines how fluid magma is. lots of silica, more fluid
CALDERA a very wide crater formed by the collapse of a volcano/magma chamber
MINERAL single solid element or compound occuring naturally in the earth's crust
ROCK it is a mixture (combination of two or more things) which is naturally formed solid material usually made of minerals
ROCK CYCLE never-ending process by which rocks change from one type to another
WEATHERING the breaking down of rocks into smaller peices by natural processes. 2 kinds: Physical and Chemical
EROSION when running water or wind loosen and carry away fragments of rock
SEDIMENT small, solid pieces of material that come from rocks or living things.
SEDIMENTARY ROCK rocks formed from bits of other rocks, plants, and animals that have settled together and hardened
METAMORPHIC ROCK rock formed when existing rockis changed by extreme heat and pressure
IGNEOUS ROCK rock formed when hot, liquid rock coools and hardens
INTRUSIVE IGNEOUS ROCK igneous rock that is formed when magma hardens beneath the Earth's surface. Ex. granite
EXTRUSIVE IGNEOUS ROCK rock formed from lava that erupted ont Earth's surface
Created by: creech5
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