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4th CUA

Changes to the Land, Sedimentary Rock and Fossil Fuels, fossils

TermDefinition
Canyon A deep ravine between cliffs that is most often carved from the landscape by a river
Delta A triangular landform where a river empties into another body of water
Deposition The buildup of land by the settlement of sediment and soil in a new location
Erosion The removal and movement of sediment from one place to another by gravity, water, wind or ice
Landform A feature on the surface of Earth such as a mountain, hill, dune, ocean, or river
Sand Dune Hill formed by wind blowing and depositing sand
Valley A low are between higher areas of elevation
Weathering The breakdown of rocks into very small particles by gravity, water, wind, and ice
Glacier A large, slow-moving, long-lasting accumulation of snow and ice that develops on land
Sediment Sand or small pieces of rock broken down by weathering and deposition on land or at the bottom of a body of water
Earthquake A sudden release of energy under Earth's surface that makes the ground shake or crack
Landslide A rapid, downward slide of rocks and mud
Volcanic Eruption A mixture of hot rocks, ash, and gas from deep inside Earth that explodes or seeps through a crack in Earth's surface
Particle The smallest unit of a substance
Soil A mixture of sand, silt, clay, rock, and humus (plant and animal remains )
U-shaped Valley A valley that is formed by glaciers moving along and down a slope
V-shaped Valley A valley formed by flowing water
Freezing and Thawing A crack in a rock can fill with water which then freezes as the temperature drops. As the ice expands, it pushes the crack apart, making it larger.
Cementation Process of binding and hardening of sediments into hard rock
Compaction Process by which pressure from rocks and soil reduces the size of sediments. Lots of Heat and Pressure!
Coal A solid fossil fuel that is formed from the remains of plants over very long periods of time
Fossil Fuel A natural, nonrenewable fuel such as coal, oil, or natural gas from the remains of living organisms
Gas A flammable material produced from remains of MARINE organisms buried under layers of sediment found near oil deposits
Oil A nonrenewable natural resource produced from the remains of organisms buried under layers of sediments for millions of years
Organic Matter The waste and remains of plants and animals
Pressure a steady force upon a surface
Decay to degrade or break down into smaller parts
fossil a preserved part or trace of an animal or plant that lived in the past
imprint a mark or depression made by pressure
model a limited representation of something that can help us understand its structure or how it works
preserved to keep its original state
decompose to break down into simpler components or basic element
diagram information shown in a graph or in picture form
ancient very old or having existed for a long time
Created by: MillerC13
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