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Earth's Changes

Unit 4 Vocabulary

TermDefinition
cementation Binding and hardening of sediments into sedimentary rock is the process of ______________________.
compaction _______________ occurs when sediments are packed tightly together by pressure from layers of rock and soil above them.
deposition The process of depositing, or dropping, weathered and eroded sediments in a new location is called ________________..
erosion The movement of sediments from one place to another by wind, water or ice is known as ______________.
evidence Facts or other information used to support a claim is ________________. An example is using fossils to understand what environments were like millions of years ago
fossil A _________ is evidence such as tracks, impressions or remains of ancient organisms formed in sedimentary rock.
fossil fuels Fuels such as coal, petroleum and natural gas that formed over millions of years from the remains of ancient plants and animals are ____________ ________.
landform A _______________ is a natural feature on the Earth’s surface such as canyons, deltas, sand dunes, mountains and valleys.
process of formation The method by which a substance or object is formed is the _______________ ___ _____________________.
weathering ______________ is the process by which wind, water and ice break down exposed rock into sediments.
canyon A ____________ is a landform with steep sides and a deep valley that results from erosion by water flowing in a river or stream.
delta A ____________ is a landform that forms when sediments are deposited where a river enters an ocean, sea, or lake.
sand dune A mound of sand formed when sediments are eroded and deposited by wind is a _________ ______. These usually occur along the beach or in the desert.
sediments __________________ are small particles such as sand, silt and gravel that are formed when rock is weathered by wind, water or ice.
wind, water, ice _______, ________, and _________ are the agents of weathering, erosion and deposition that create and change landforms on Earth’s surface.
sedimentary rock Rock that is formed when layers of sediments are compacted and cemented together is _______________ ______.
coal ___________ is a fossil fuel formed from the remains of ancient plants.
oil (petroleum) ______________, also known as petroleum, is a liquid fossil fuel that was formed from the remains of ancient marine organisms.
natural gas ____________ ______ is a fossil fuel formed from the remains of ancient marine organisms. It is often found with petroleum.
peat _____________ is formed from decomposing plant material that dies and sinks under the water in swamps.
swamp An area of land covered by shallow water and surrounded by forest is a ________________.
limitation A __________________ is anything that makes a model less realistic or makes it harder for us to understand the real world object.
decomposition The process by which dead plants and animals decay or rot is __________________.
extinction The death of an entire species is known as __________________.
conservation _________________ is the wise use of natural resources such as water, forests, land and fossil fuels.
renewable Resources that can be replaced again and again, and if used wisely, will not run out are considered to be _______________.
nonrenewable Resources that are used up more quickly than nature can replace them are considered to be _______________.
glacier A slowly moving river of ice formed by the accumulation and compaction of snow on mountains is a _______________.
U-shaped valley A _________ ____________ is formed a a glacier moves downhill carving the mountain and leaving steep sides and a rounded bottom.
V-shaped valley A ________ ____________ is caused when rivers wear away rock layers leaving a narrow bottom with steep sloped sides.
Sediments __________________ are small particles such as sand, silt and gravel that are formed when rock is weathered by wind, water or ice.
Created by: Plainview 5th