Geography 7
Terms
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- loess
- mineral rich dust and silt
- continental drift theory
- a theory that there was once a super continent called pangea
- latitude
- imaginary lines that run parrallel to the equator
- hemispheres
- the two halves of the world diveded by the equator
- faults
- breaks in the earth's crust
- chemical weathering
- when a rock's chemical makeup is alteered by the changing of minerals that form the rock
- acid rain
- when chemicals in the polluted air combine with water vapor and fall back to eath
- mantle
- thick layer of molten rock around te core
- crust
- the thin rocky surface area of the earth
- equator
- an imaginary line that circles the globe halfway between the north and south poles
- moraines
- ridgelike piles of rock and debris
- longitude
- imaginary lines that run north and south between the two poles
- lava
- molten rock
- geography
- the study of where people places and things are located and the ways in which things relate to each other
- absolute location
- a places position on the globe
- geology
- the study of the earht's phisical structure and history
- relief
- the differnce in elevation between the highest and lowest points
- weathering
- the breakdown of rock at or near the earth's surface into smaller and smaller pieces
- sediment
- small particles of soil sand and gravel
- ring of fire
- circle of volcanoes surrounding the pacific ocean
- core
- center of the earth which consists of very hot metal, mainly iron and nickle
- relative location
- where a place is locatted in relation to other places
- functional regions
- consists of one central place that effects the surrounding area
- formal region
- an are in which certain charecteristics are found throughout the area
- plate tectonics
- the theory that earth's outer shell is not one solid piece of rock. Instead the lithosphere-the earth's crust and the brittle upper layer of the mantle-is broken into a number of moving plates
- mechanical weathering
- occurs when rock is actually broken and weakened physically
- erosion
- the movement of weathered material such as gravel and soil
- fold
- when rock layers bend and buckle
- continents
- large landmasses in the ocean
- glaciers
- huge slow moving sheets of ice
- prime meridan
- a line that runs north to south through grenwich england other meridans are measured from this