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53 Cards in this Set
- Front
- Back
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The earth is made up of what?
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A Core, Mantle, and a Crust
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The middle layer is a soft layer of
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molten rock
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the theory that earth was once a supercontinet
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Pangea
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oceans cover what percentage of our planet
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71% and salt water
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continteal shelf is
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The earths surface from the edge of the continet to the deepest part of the ocean
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The ocean that has many many ridges and mountian chains
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mid-atlantic ridge
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a relif
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the differnce in elevation of landforms lowest to highest
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Tectonic Plates
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circulation system of heated rocks beneaths earth crust
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earth plates move 4 ways
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1. spreading or moving apart
2. subduction, or diving under another plate 3. collision or crashing into another 4. sliding past another in shearing motion |
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When two plates meet their boundaries either
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fold or faults
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earthquakes occure when plates
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grind past another
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Volcanoes are formed when
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magma gas and water pour out of an opening in the earths surface
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Weathering
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chemical and physical process that changes chararistics of rocks
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Chemical Weathering
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rocks changed into a new substance
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Mechanical Weathering
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process of breaking down rocks into small pieces
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latitude lines
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run east to west
(parallels) |
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lat lines are
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numbered in degress north south of equator 0-90
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Major lines of latitude
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equator
tropic of cancer artic circle tropic of capricorn south antartic circle |
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Longitude
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runs north-south direction
(meridrans) converge @ polar regions |
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Long lines numbered in
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east or west of prime mederidain 0- 180
w/ time |
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Major lines of longitude
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prime meridian splits earth in half(eastern and western hemispheres)
International Dateline 180 degress of long. 24 hour difference in time |
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Geography
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study of distrabution and interaction of physical and human features on earth
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Physical geography
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prcoess of pattern in natural enviroment
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Human Geography
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study of people who populate and area and how they are affcetive
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absoulte location
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the exact place on earth where geography features found
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to find absoulte location you record _____ first
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latitude
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hemisphere
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half of the globe
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relative location
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how a place is realted to a surrounding enviroment
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place answers
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what is it like?
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chararistics that describe region
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phyiscal, political, economic, and cultural
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formal region
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limited # of chraristics
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function region
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organized around a set of interactions
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perpetual region
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which people perceve simalar
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linear distance
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how far across the earth persons ideas travel
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time distance
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amount of time it takes a person
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physcoligical distance
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distance people view it
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archipelago
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large group of islands
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bay
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a small body of water that extends into the land
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gulf
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a large body of salt water that is partly enclosed by land
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Island
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a piece of land surrounded by water
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isthmus
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a narrow strip of land that connects to larger land areas
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lagoon
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a shallow body of water that is partly cut off from the sea
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lake
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an inland body of fresh or salt water
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Mountian
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a high area of liand w/ steep sides anda sharp peak
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Peninsula
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a landform borderd by the water on three sides
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Plateau
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a flat area of land that is hgiher than the land around it
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River
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a long body of water that flows accross land higher elevation to a lower elevation
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Sea
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a body of salt water that is partly enclosed by land
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Strait
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a narrow body of water that connects 2 bodies of water
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Tributary
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a stream or river that feeds a lake or a larger stream or river
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Valley
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a area of low land between mountains and hills
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equinox
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where all the days and nights are equal length
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solstice
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summer longest day
winter- shortest day |
