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Science 5

Chapter 9 vocab

TermDefinition
magma the melted rock forming substances inside the earth's mantle
lava THE MAGMA THAT REACHES THE SURFACE OF THE EARTH
intrusive a type of igneous rock that cools slowly and has large crystals
extrusive a type of igneous rock that cools quickly and has small crystals
abyssal plain nearly flat region on the ocean floor
subduction the process by which a lithospheric plate is forced under another
deep ocean current a stream of water that flows deep beneath the ocean's surface
coriolis effect the way earth's rotation affects wind currents
El NiƱo a periodic change in ocean and atmospheric conditions causing an unusually warm surface water
upwelling the movement of cold water to the surface
polarity the quality of having two opposite poles (positive and negative)
Created by: erfy97
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