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Earth's History

TermDefinition
Weathering Breaking and wearing down of rock by wind, water, and ice.
Erosion The gradual process of sediment being carried away by wind, water, and ice
Deposition The dropping of sediment in a new location.
V shaped valley Rivers weather and erode
U shaped valley Glaciers weather and erode
Canyon A very deep v shaped valley formed after millions of years
Delta A new land form where a river meets an ocean due to deposition of sediment by the river.
Sedimentary rock Formed by the layering of sediment by cementation and compaction over millions of years. Oldest layer is on the bottom.
Fossil Preserved parts or traces of plants and animals trapped in sedimentary rocks
Renewable Resource A resource that can be rapidly replaced by nature
Nonrenewable Resource A resource that cannot be replaced in a short amount of time
Oil Liquid fossil fuel produced from partially decayed remains of marine organisms.
Natural Gas A gas fossil fuel found near oil deposits
Coal A solid fossil fuel that is formed from partially decayed plants.
Cementation Process by which sedimentary rock particles or fragments are cemented together after deposition
Compaction Sediment is crushed or compressed together
decay rot or decompose through the action of bacteria and fungi
Constructive force builds new land
Destructive force tears land down
Rapid Earth change Landslides, Earthquakes, Volcanic Eruptions
Slow Earth Changes Weathering, Erosion, Deposition
Fossil Fuels Coal, oil, natural gas and other fuels formed from partially decayed plants or animals
Created by: ccoipel
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