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8 WeatherP.Tectonics

Fletcher's 8th Air Masses, Weather, Plate Tectonics, Weathering & Erosion

TermDefinition
Volcanic Islands The result of a tectonic plate moving over a hot spot
Pangaea The name of the supercontinent that may have existed 200 million years ago
Harry Hess The man who discovered that the sea floor was spreading
Folded Mountains A crustal feature formed by the collision of two continental plates
Subduction When tectonic plates collide and one is forced under the other
Continental Drift The idea proposed by Alfred Wegner
Divergent A plate boundary in which the plates are separating
Geology The study of the earth; what it is made of and the processes that effect it
Convergent A plate boundary in which the plates are colliding
Mesosaurus Prehistoric lizard fossils found in both South America and Africa
Fault A crack in the earth's crust
Lithosphere The layer of the earth consisting of the upper mantle and the Earth's crust
Alfred Wegner The man who couldn't prove his theory of continental drift
Glossopteris Prehistoric fern fossil found in India and Antarctica
Mountains What does the action of colliding tectonic plates produce?
Transform Tectonic plate boundary in which the plates slide past one another
Mid Atlantic Ridge A crustal feature formed in the middle of the Atlantic Ocean by a divergent boundary
Buoyancy An upward pushing force in fluids
Convection Warmer fluids become less dense and rise
Water Substance that takes a long time to warm up and a long time to cool down
High Pressure Air pressure created by cold, dry air
Doldrums Low pressure areas with low winds found at or near the equator
Maritime Polar A cold and moist air mass
Air Mass A large body of air with consistent Temperature, moisture and air pressure
Weather Front The boundary between two air masses
ThunderStorm A weather event associated with a cold front
Clear The type of skies in a High pressure air mass
Maritime Tropical The air mass with the lowest air pressure
Coriolis Effect Global atmospheric winds that make air currents spin clockwise in the Northern hemisphere and counterclockwise in the Southern
Gyres Large circular ocean surface currents that are bordered by continents.
Sea Breeze local winds created by strong convection over land next to an ocean.
Gulf Stream Large surface current that carries warmer temperatures from Florida to Europe
Delta A collection of sediment that builds up where a river meets a larger body of water
Topographic Map A flat map that shows relief
elevation On a map, what is relief?
Erosion The process by which sediment is moved by wind, water, glacier or gravity
Weathering The process of turning rock into sediment
Steep slope what do closely spaced contour lines on a map show?
contour ___________ lines that connect areas of equal elevation
Depression Another name for a hole in the ground
water the single greatest agent of erosion
relief Elevation on a map
contour Interval The change in elevation from one contour line to the next
Profile A view of an object from the side
Ice Wedging A physical way in which water can break apart rocks
Mechanical weathering Physical breakdown of rock
Alluvial Fan A deposit of sediment at the base of a mountain
Iron Oxide Product of Water , Iron and time
Rust Another name for Iron oxide
Created by: coach_fletcher
 

 



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