core 1. -the center of the earth 2 mantle 3 the middle of the earth made up of molten (melted) rock...
TRANSCRIPT
![Page 1: Core 1. -the center of the Earth 2 Mantle 3 the middle of the Earth made up of molten (melted) rock 4](https://reader031.vdocuments.net/reader031/viewer/2022020319/56649f1c5503460f94c3337f/html5/thumbnails/1.jpg)
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Core
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-the center of the Earth
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Mantle
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the middle of the Earth made up of molten (melted) rock
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Crust
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the surface layer of the Earth that includes the continents and oceans
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Continental Drift
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-the theory of how Earth’s continents move over its surface
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Plate Tectonics
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-the theory of how the continents move on giant crustal plates over
the mantle of the Earth
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Earthquake
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-a sudden movement of the Earth’s crust
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Landform
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-a natural feature of the surface of the Earth that has a particular
shape
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Mountain
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-a landform caused by the uplift of the Earth’s crust; created when two crustal plates press against
each other; this landform can also be caused by volcanoes
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Growth
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-creation of new landforms (by crustal movements, harden lava
flow and/or deposition of sediments)
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Flow
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-movement of material (such as lava, mud or water/ice)
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Constructive Forces
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-actions that build up or construct landforms
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Destructive Forces
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-actions that wear down or destroy landforms
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Volcano
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-an opening in the Earth’s crust through which lava, ash and gases
flow
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Magma
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-the melted rock under Earth’s surface; magma flows in the mantle
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Lava
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-melted rock flowing on the surface of the Earth, usually from volcanoes
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Weathering
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-the process of breaking rock into soil, sand and other tiny pieces
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Erosion
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-the process of moving sediments from one place to another
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Deposition
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-the process of dropping (depositing) sediment in a new location
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Beach
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-gently sloping shore next to a body of water, washed by waves or tides, often covered by sand and pebbles.
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Dune
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-a mound, hill or ridge of wind-blown sand
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Glacier
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-a large river of ice that moves very slowly; will create a u shaped valley
between mountains
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Valley
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-a low area between hills and mountains; v-shaped valleys are formed by rivers; u-shaped are
formed by glaciers
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Plain
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-a nearly level area that has been eroded or where material has been
deposited
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Plateau
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-a nearly level area that has been uplifted
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Flood
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-when water get higher than normal and flows onto dry land
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Floodplain
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-the land that gets covered by water from a stream or river during a flood
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Canyon
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-a long, narrow, deep valley with steep walls that is formed by running
water cutting into the Earth
![Page 55: Core 1. -the center of the Earth 2 Mantle 3 the middle of the Earth made up of molten (melted) rock 4](https://reader031.vdocuments.net/reader031/viewer/2022020319/56649f1c5503460f94c3337f/html5/thumbnails/55.jpg)
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Meander
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-a curve or loop in a river
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Delta
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-a fan shaped deposit at the mouth of a river
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Groundcover
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-small plants that grow on the forest floor or in a field (mosses,
ferns and grasses)
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Sediments
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-pieces of rock or earth that have been broken down by weathering
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Sedimentary Rock
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-rock formed by the deposit of sediments that undergo pressure over time
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Fossils
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-a trace of a plant or animal from long ago (millions of years) that is
embedded in the Earth’s crust.
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Soil
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-the top layer of the Earth’s surface that is made of rocks, minerals and
plant material
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Bedrock
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-the rock layer that is under the soil
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Topsoil
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-the upper, dark soil where plants grow
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Humus
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-the decomposing remains of dead plants and animals
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Natural Resources
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-materials found in the environment that are not
manmade
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Renewable Resource
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-a resource that CAN be replaced in a short amount of time
examples: plants, animals, water, oxygen, soil, wind, ocean tides)
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Nonrenewable Resources
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-a resource that CANNOT be replaced in short time
examples: oil, natural gas, coal, minerals, rock
![Page 81: Core 1. -the center of the Earth 2 Mantle 3 the middle of the Earth made up of molten (melted) rock 4](https://reader031.vdocuments.net/reader031/viewer/2022020319/56649f1c5503460f94c3337f/html5/thumbnails/81.jpg)
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Recycle
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-to reprocess discarded material (aluminum cans, plastic, paper)
to form new products
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Fossil Fuels
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materials formed from decayed remains of ancient plants and
animals that are burned to produce heat; coal, oil, and natural gas