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Science Clep

Atmosphere

Buffer zone which protects from meteorites and radiation

Troposphere

lowest layer of atmosphere which provides most of our weather

Stratosphere

includes ozone layer and is warmer than other spheres because it absorbs UV light

mesosphere

third layer of the atmosphere in which meteors burn up

ionosphere

high in ions and electrical charge

exosphere

atmosphere extends to space and is compressed by solar wind

clouds

humid air which cools enough for water vapor to condense into droplets or ice crystals

condensation nuclei

tiny particles that serve as kernels around which drops can form

cirrus

high level clouds and are thing which do not produce rain. Indicative of fair weather

Altostratus

flat, mid level clouds

altocumulus

puffy, mid level clouds

virga

precipitation that does not reach the ground

stratus clouds

dense, dark, rainy low level clouds

cumulous

fair weather clouds

cumulonimbus

larger cumulous clouds which produce storms

Inner Core

solid iron ball that is white hot. High pressure prevents iron from melting

Outer Core

shell of liquid iron which is responsible for Earth's magnetic field

Mantle

rock which flows under pressure. Upper and lower

Crust

outermost layer of earth

Rocks

natural substance composed of solid crystals of different minerals that have been fused together in a solid lump

igneous

volcanic rock and form from molten material

basalt

seafloor formed from dark lava

sedimentary rocks

formed from eroded fragments of other rocks or even remains of plants or animals

strata

layers of rock

metamorphic rocks

sedimentary or igneous rocks that have been transformed by heat, pressure or intrusion of fluids

xenolith inclusion

a rock inside another rock

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