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Earth Science - Mapping Earth's Surface

Chapter 1 Mapping Earth's Surface

TOPOGRAPHYThe shape of the land determined by elevation, relief, and landforms.
ELEVATIONHeight above sea level.
RELIEFThe difference in elevation between the highest and lowest parts of an area.
LANDFORMA feature of topography formed by the processes that shaped Earth’s surface.
LANDFORM REGIONA large area of land where the topography is similar.
PLAINA landform made up of flat or gently rolling land with low relief.
MOUNTAINA landform with high elevation and high relief.
MOUNTAIN RANGEA series of mountains that have the same general shape and structure.
PLATEAUA landform that has a more or less level surface and is elevated high above sea level.
LITHOSPHEREA rigid layer made up of the uppermost part of the mantle and the crust. One of four spheres into which scientists divide Earth.
COREEarth’s sense center, made up of the solid inner core and the molten outer core.
MANTLEThe layer of hot, solid material between Earth’s crust and core.
CRUSTThe layer of rock that forms Earth’s outer surface.
ROCKThe material that forms Earth’s hard surface.
GEOLOGYThe study of the solid Earth.
MAPA model of all or part of Earth’s surface as seen from above.
GLOBEA sphere that represents Earth’s surface.
SCALEUsed to compare distance on a map or globe to distance on Earth’s surface.
SYMBOLSOn a map, pictures used by mapmakers to stand for features on Earth’s surface.
KEYA list of the symbols used on a map.
EQUATORAn imaginary line halfway between the North and South poles that circles Earth.
HEMISPHEREOne half of the sphere that makes up Earth’s surface.
PRIME MERIDIANThe line that makes a half circle from the North Pole to the South Pole, passing through Greenwich, England.
DEGREEA unit used to measure distance around a circle. One degree equals 1/360 of a full circle.
LATITUDEThe distance north or south from the equator, measured in degrees.
LONGITUDEThe distance in degree east or west of the prime meridian.
MAP PROJECTIONA framework of lines that helps to show landmasses on a flat surface.
SATELLITE IMAGEPictures of the land surface based on computer data collected from satellites.
PIXELThe tiny dots in a satellite image.
DIGITIZINGConverting information to numbers for use by a computer.
TOPOGRAPHIC MAPA map that shows the surface features of an area.
CONTOUR LINEA line on a topographic map that connects points of equal elevation.
CONTOUR INTERVALThe difference in elevation from one contour line to the next.
GLOBAL POSITIONING SYSTEMA method of finding latitude and longitude using satellites.

Creekland Middle School

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