Earth Surface

Front 1

direction

Back 1

the line along which anything lies, faces, moves, etc., with reference to the point or region toward which it is directed

Front 2

elevation

Back 2

the height to which something is elevated or to which it rises

Front 3

latitude

Back 3

the angular distance north or south from the equator of a point on the earth's surface, measured on the meridian of the point.

Front 4

location

Back 4

a place of settlement, activity, or residence

Front 5

longitude

Back 5

angular distance east or west on the earth's surface

Front 6

relief

Back 6

alleviation, ease, or deliverance through the removal of pain, distress, oppression,

Front 7

sea level

Back 7

the horizontal plane or level corresponding to the surface of the sea at mean level between high and low tide.

Front 8

Topography

Back 8

the detailed mapping or charting of the features of a relatively small area, district, or locality.

Front 9

map

Back 9

a representation, usually on a flat surface, as of the features of an area of the earth or a portion of the heavens, showing them in their respective forms, sizes, and relationships according to some convention of representation.

Front 10

projection

Back 10

the state or fact of jutting out or protruding.

Front 11

continent

Back 11

one of the main landmasses of the globe, usually reckoned as seven in number.

Front 12

landform

Back 12

a specific geomorphic feature on the surface of the earth, ranging from large-scale features such as plains, plateaus, and mountains to minor features such as hills, valleys, and alluvial fans.

Front 13

compass

Back 13

an instrument for determining directions, as by means of a freely rotating magnetized needle that indicates magnetic north.

Front 14

compass rose

Back 14

a circle divided into 32 points or 360° numbered clockwise from true or magnetic north, printed on a chart or the like as a means of determining the course of a vessel or aircraft.

Front 15

satellite

Back 15

a device designed to be launched into orbit around the earth, another planet, the sun.

Front 16

polar orbit

Back 16

a spacecraft orbit that passes over, or close to, the geographic poles of the earth or some other celestial body.

Front 17

contour line

Back 17

a line joining points of equal elevation on a surface.

Front 18

contour interval

Back 18

the difference in elevation represented by each contour line on a topographic map.

Front 19

geologic map

Back 19

Rock units or geologicstrata are shown by color or symbols to indicate where they are exposed at the surface.

Front 20

bathymetric map

Back 20

study of underwater depth of lake or ocean floors.