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Flashcards - Praxis Middle School Science: Changes to Earth's Surfaces

Flashcards - Praxis Middle School Science: Changes to Earth's Surfaces
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faults
In geology, a fault is a planar fracture or discontinuity in a volume of rock, across which there has been significant displacement as a result of rock mass movement
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seafloor spreading
Seafloor spreading is a process that occurs at mid-ocean ridges, where new oceanic crust is formed through volcanic activity and then gradually moves away from the ridge
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Pangaea
Pangaea or Pangea was a supercontinent that existed during the late Paleozoic and early Mesozoic eras
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weathering
Weathering is the breaking down of rocks, soil and minerals as well as wood and artificial materials through contact with the Earth's atmosphere, waters and biological organisms
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weathering
Weathering is the breaking down of rocks, soil and minerals as well as wood and artificial materials through contact with the Earth's atmosphere, waters and biological organisms
Pangaea
Pangaea or Pangea was a supercontinent that existed during the late Paleozoic and early Mesozoic eras
seafloor spreading
Seafloor spreading is a process that occurs at mid-ocean ridges, where new oceanic crust is formed through volcanic activity and then gradually moves away from the ridge
faults
In geology, a fault is a planar fracture or discontinuity in a volume of rock, across which there has been significant displacement as a result of rock mass movement
plates
A plate is a broad, concave, but mainly flat vessel on which food can be served
Sheet erosion
In earth science, erosion is the action of surface processes that remove soil, rock, or dissolved material from one location on the Earth's crust, then transport it away to another location
divergent boundary
In plate tectonics, a divergent boundary or divergent plate boundary is a linear feature that exists between two tectonic plates that are moving away from each other
refracted
Refraction is the change in direction of propagation of a wave due to a change in its transmission medium

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