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Frizzell Vocab # 9

Changes to Earth's Surface

weathering the breakdown of rock into smaller particles (sediments) from the effect of wind, water and ice
erosion the movement of weathered sediment on the Earth’s surface by wind, water or ice
deposition the build up of land by depositing sediment and soil into a new location
landform physical features of the Earth’s surface, such as mountains, dunes, hills, rivers, valleys, oceans
delta a tri-angle shaped landform formed at the mouth of a river by deposition sediments carried by the river as it empties into a body of water
canyon a deep, narrow landform with very steep sides created by the weathering effects of a river
sand dune a landform created by wind blowing sand into tall hills
glacier a large, slow-moving “river” of ice formed by T.O.Y’s of snow/ice layers
sediment the small particles of rock formed as a result of weathering
sedimentary rock a type of rock that forms when layers of sediment are pressed and cemented together
compaction a “squeezing” together of sediment caused by pressure
cementation the process of “gluing” compacted rock sediments together into a hard rock
landslide a large mass of rocks and earth that suddenly and quickly moves down the side of a mountain or hill
earthquake a shaking of a part of the Earth's surface that often causes great damage
volcano a mountain with a hole in the top that sometimes sends out rocks, ash, and lava in a sudden explosion (called an eruption)
valley (V or U-shaped) a low area of land between hills or mountains, typically with a river or stream flowing through it.
erupt an explosion of steam and lava from a volcano.
thawing the process of ice or snow becoming liquid as a result of warming up.
Created by: tfrizzell
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