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chapter 4 terms

core Earth center
mantle beyond the core
magma liquid crust within Earth
plate tectonics how forces within the planet create landforms
continental drift the plates slowely move across the upper mantle usually less than an inch per year
rift valleys in these places the crust stretches until it breaks
abyssal plains he worlds flattest and smoothest regions
continental shelves at the edges of the continental shelves the seafloor drops steeply down to the abyssal plains
trench the deep valley marking the plate collision
folds when rocks have been compressed into bends
faults are places where rock masses have broken apart and moved away from each other
weathering rocks break and decay over time in a process
sediment weathering breaks rocks into small particals of gravel sand and mud
erosion the other process changing landforms on earths surface
glaciers thick masses of ice
plateau lanform
alluvial fan the sediment eroded from the mountains may then be deposited at the mountains bases
delta there the sediment may move out into the ocean sink or the sediment may accumulate
desalinization the salt in the water can be romoved
hydrologic cycle the movement of water through the hydrosphere
headwaters the first and smallest streams from this runoff
tributary any smaller stream or river that flows into a larger stream or river
watershed the whole region drained by a river and its tributary
drainage basin the whole region drained by a river and its tributary
estuaries where surface water is found
wetlands where surface water is found
groundwater water found below ground
water table the level at which all the spaces are filled with water
Created by: jimasanders