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RL-Chpt. 1

World Geography

elevation height above sea level
plain low-lying stretches of flat or gently rolling land
plateau flat areas of land but have a higher elevation than a plain
isthmus a narrow piece of land that connects two larger pieces of land
peninsula a piece of land with water on three sides
island a body of land smaller than a continent and completely surrounded by water
continental shelf an underwater plateau that lies off the coast of a continent
trench deep valleys that line the ocean floor and are the lowest spots in the Earth's crust
strait a narrow body of water between two pieces of land
channel a wider body of water between two pieces of land
delta soil and sand built up at the mouth of a river
Core center of the earth made of hot iron mixed with other metals and rock
mantle a layer of rock surrounding the core made of rock and magma
crust uppermost layer of the earth that includes the ocean floors and the seven continents
continent massive land areas
plate tectonics theory to explain the earths structure which states that the earth's crust is not an unbroken shell but consists of plates that move
earthquake violent and sudden movement of the earth's crust
tsunami huge waves caused by undersea earthquakes
fault cracks in the earth's crust
weathering process of breaking surface rock into boulders, gravel, sand and soil
erosion the process of wearing away or moving weathered material
glacier giant, slow-moving sheets of ice
geography the study of the earth in all its variety
land form individual features of land such as mountains or valleys
Global Positioning System a group of satellites that travel around the earth used to label exact positions or places on a map
geographic information system special computer software used to collect different kinds of information
artifact tools, pottery, paintings and other items left behind by past societies
fossil human remains
environment natural surroundings
solar system made up of the sun and nine planets
orbit path a planet travels around the sun
atmosphere layer of air surrounding the earth that supports life
axis imaginary line that runs through the earth's center between the North and South Poles
revolution 365 1/4 days or one complete orbit around the sun
leap year a year that contains one extra day which occurs every four years
summer solstice day, in the northern hemisphere with the most hours of sunlight and fewest hours of darkness
winter solstice day, in the northern hempisphere with the fewest hours of sunlight
equinox when day and night are of equal light in both hemispheres
Created by: lamoureuxr