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### 34 Cards in this Set

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 a model or representation of the earths surface map greek mathematician who calculated the earths circumfrancein 240 bc erathenes a fixed place on the earths surface from which directions and location can be described refrence point an imaginary line throught the earth about which the planet rotates axis north end of the axis north pole south end of the axis south pole north south east west and varios combos os these directions cardinal directions uses the natural magnetism of the earth to indicate direction compass geographic north pole true north is measures in degrees east or west of true north magnetic declination imaginary lines drawn around the earth parellel to the equator latitude an imaginary line thay passesd through the poles equator divides the earth into the eastern and western hemisphere prime meridian opposite of the prime meridian international dateline what are the three types of projections? mercator, cylidrical and planer results from when the contents of the globe sre transferd onto a cylinder of paper cylindrical projections made by transfering the contents of a globe onto a cone conic projection made by transferring the contents of a globe onto a plane planer projection pictures taken from planes planer projection the gathering of info w/o actually being there remote sensing tells what area ia being shown or gives info about the map subject title shows the relationship between the distance on the earths surface an the distance on the map map scale a maps ruler graphic scale is a phrase that describes a measure of distance reltive to the distance ont he esrths surface verbal scale a fraction or ratio that shows the relationship between the distance on the map and the distance on the earths surface represtitive fraction shows how the map is position in relation to true north compass rose is a list of symbols used on the map and there explainations legend gives the time at which the info was accurate date the height of an object at sea level elevation the difference in elevation between contour lines contour interval a dark heavier contour line that elevation is labelled index contour the diff. in elevation between the highest and lowest point being mapped relief short straight lines within contour lines hachures what are the the 4 things u need to no to read a topographic map 1)contour lines never cross 2)closly spaced contour lines indicate steep slope 3)contour lines crossing valleys or streams are "V" shaped 4)contour lines form closed loops around hills etc. check for hachures