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Day - Chap 3 Chan

Day - Chap 3 Changing Earth's Surface

QuestionAnswer
weathering The chemical and physical processes that break down rock and other substances.
erosion The process by which water, ice, wind, or gravity moves weathered particles of rock and soil.
sediment Small, solid pieces of material that come from rocks or the remains of organisms; earth materials deposited by erosion.
deposition Process in which sediment is laid down in new locations.
physical weathering The type of weathering in which rock is physically broken into smaller pieces.
chemical weathering The process that breaks down rock through chemical changes.
abrasion The grinding away of rock by other rock particles carried in water, ice, or wind.
frost wedging Process that splits rock when water seeps into cracks, then freezes and expands.
oxidation A chemical change in which a substance combines with oxygen, as when iron oxidizes, forming rust.
permeable Characteristic of a material that contains connected air spaces, or pores, that water can seep through easily.
topography The shape of the land determined by elevation, relief,and landforms.
elevation Height above sea level.
relief The difference in elevation between the highest and lowest parts of an area.
landform A feature of topography formed by the processes that shape Earth's surface.
plain A landform made up of flat or gently rolling land with low relief.
mountain A landform with high elevation and high relief.
mountain range A group of mountains that are closely related in shape, structure, area, and age.
plateau A large landform that has high elevation and a more or less level surface.
landform region A large area of land where the topography is made up mainly of one type of landform.
gravity The attractive force between objects; the force that moves object downhill.
mass movement Any one of several processes by which gravity moves sediment downhill.
Created by: Mrs. Day
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