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Earth Sci Word Wall

On our Grand Canyon Unit

TermDefinition
Qualitative Visible descriptions; observations
Quantitative Numerical details
Weathering Natural process of breaking down resources
Homogenous All parts are uniform; the same
Heterogenous Made up of different parts; different throughout
Inorganic Not alive
Erosion Natural forces transporting sediment from one place to another
Arid Dry, a dry area
Elevation Height above a given level, typically sea level
Abundant A lot
Sedimentary rocks Rocks made up of broken down sediments that have combined into layers over time
Relative Dating Method of dating using comparison between layers or fossils - does not provide specific age
Law of cross-cutting relationships Any geological feature that cuts across another is younger than the feature it interrupts
Uplift The process where the earth's crust is raised, increasing land elevation, typically due to tectonic plate movement
Down cutting Geological process where a river deepens by eroding the material on it's bed
Law of Superposition The layers in rock are oldest at the bottom, and are younger the closer they are to the Earth's surface
Law of original horizontality Rocks are deposited in horizontal layers due to gravity
Sequence Process of arranging rock layers in chronological order to understand Earth's history
Unconformity A gap in the rock or sequence that occurs from erosion taking away a layer or layers.
Tributary A small river or stream flowing into a bigger body of water
Watershed An area of land that separates water, causing it to flow into different bodies of water.
Diversion The process of unnaturally redirecting water from it's natural coarse to be used for other purposes
Bioaccumulation The gradual buildup of substances, such as toxic chemicals, in an organism over it's lifetime
Porosity The percent of empty space between rocks or sediments
Permeability The speed at which water passes through sediment
Infiltration Process of surface water seeping into the soil to become groundwater
Retention Stored or held onto
Spatial Relating to space; where
Temporal Relating to time; when
Physical weathering Rocks are broken into smaller pieces without changing what they're made of; without chemical change
Chemical weathering The minerals in the rock change into a new substance; they change chemically
Created by: user-1762376
 

 



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