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65 Cards in this Set
- Front
- Back
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hydrosphere
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oceans lakes rivers and other bodies of water
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lithosphere
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the earths crust
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atmosphere
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a layer or gases extending above the earth
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biosphere
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the part of the earth that supports the life of everything on earth
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isthmus of panama
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links north and south america
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sinai peninsual
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a human made canal that seperates africa and asia
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continental shelf
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an underwater extension of the coastal plain
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mount everest
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the highest point on the earth above sea level
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dead sea
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the lowest dry land point on earth
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marina trench
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a narrow underwater canyon
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core
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the very center of the earth
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mantle
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a thick layer of rock that is very hot
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crust
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the outer layer of the earth
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continental drift
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the theory that all the continents were once one big super continent
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plate tectonics
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refers to all the physics processes that create many of the earths physical features
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magma
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molten rock that has been pushed up mountains creating volcanoes
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himalaya
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some of the largest mountains caused by the collision of plate tectonics
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subduction
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the heavier sea plates go under the lighter ones
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accretion
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a certain case where sea plates meet
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spreading
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sea plates that pull apart
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folds
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plates that fold the earth's surface until it buckles
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faults
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when plate tectonics pass each oter and slide the land
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san andreas fault
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a famous fault in california
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faulting
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occures when the folded land cannot be bent any further
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kobe
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a place where a large earthquake hit
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san francisco
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another famous city where a large earth quake hit
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ring of fire
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a very earthquake prone zone
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weathering
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breaks down rocks
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erosion
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wears away the earth surface by wind water and glaciers
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glaciers
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large bodies of ice that move across the earth surface
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weather
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is the condition of the atmosphere in one place during a set period of time
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climate
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the average temperature of one place
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axis
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an imaginary line running from the north pole to the south pole.
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temperatutre
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the measure of how hot or cold a certain place is.
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revolution
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one trip around the sun for a planet
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equinox
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daylight and nightime are the same time.
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tropic of cancer
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the northernmost point on the earth that receives the most sunlight
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solstice
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marks the beginning of summer for the northern hemisphere
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tropic of capricorn
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marks the shortest amount of daylight in the northern hemisphere
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green house effect
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the earth would be cold for most living things to survive/
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global warming
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believed to caused in part by human activities such as burning coal, oil, and natural gas.
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low latitudes
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between 30 degrees north and south
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high latitudes
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between 60degrees north and south and 90degrees norht and south
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arctic cirlce
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the polar area from the north
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antarctic circle
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the polar areas from the south
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midlatitudes
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between the northern and southern hemishphere
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prevailing winds
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global winds that blow constantly in patterns
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coriolis effect
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causes prevailing winds to blow diagnonally rather than along
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doldrums
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at the equator global winds are diverted north and south leaving a narrow generally windless bad or area
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currents
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cold and warm streams of water move throgh the oceans
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El Nino
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a periodic change in the patern of ocean currents water temperature and weather in the mid pacific region
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windward
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the side of the mountain range facing the wind
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leeward
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the opposite side of the mountains
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rainshadow
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the hot dry ari produces little precipitation in effect.
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natural vegitation
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the original platn life that grows in the area
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ttropics
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tropical climates found in or near the low latitudes
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sahara
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extends over most of Africa and is one third of the total land mass on earth
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oasis
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a water spot in secluded parts of the desert
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coniferous
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trees most of which are ever greens and have cones
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decidous
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trees in which have broad leaves
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mixed forest
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a variety of trees in one forest.
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prairies
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inland grasslands
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permafrost
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permanitly frozen subsoil
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hyposthisis
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an educated guess
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smog
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gas that is created by ultravoilet rays
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