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Geog. & History A

WCHS Geog. & History A - Chapters 1-3

fault a fracture in the earth's crust
sediment weathering process that creates smaller and smaller pieces of rock, very fine particles of rock
hurricane storms that form over warm, tropical ocean waters
equator the imaginary line that divides the north and south halves
La Nina/El Nino winds that blow warm water to the lands on the western Pacific rim, brings dry weather to Americans; Winds that blow over the Pacific ocean, brings heavy rains to North America
climate the typical weather conditions at a particular location as observed over time
deciduous broadleaf trees, such as maple, oak, birch and cottonwood
tectonic plates an emormous moving shelf that forms the earth's crust
mechanical weathering the natural processes that break rock into smaller pieces
richter scale a way to measure information colllected by seisographs to determine the relative strength of an earthquake
convection the transfer of heat in the atmoshpere by upward motion of the air
absoulute location the exact place on earth where a geographic feature is found
tundra a flat treeless lands forming a ring around the Arctic Ocean, the climate region of the Arctic Ocean
coniferous needleleaf trees, such as pine, fir, cedar
physical weathering there is a physical change to the substance, size or shape; can occur during mechanical or chemical weathering
glaciation the changing of landforms by slowly moving glaciers
permafrost the subsoil is constantly frozen
greenhouse effect the layer of gases released by the burning ocal and pertoleum that traps solar energy, causing global temperature to increase
biome the ecosystem of a region; divided into forest, grassland, desert, and tundra
relative location describes a place in comparison to other places around it.
savana tropical grassland region, the flat, grassy, mostly treeless plains
chemical weathering occurs when rock is changed into a new substance as a result of interaction between elements in the air or water and the minerals in the rock.
seismograph a device that measures the size of waves created by an earthquake
taiga a nearly continuous belt of evergreen coniferous forest across the Northern Hemishpere, in North America and Eurasia
longitude lines the set of imaginary lines that go around the earth over the poles
map projection a way of drawing the earth's surface that reduces distortion caused by presenting a round earth on flat paper
continental drift the hypothesis that all continents were once joined into a supercontinent that split apart over millions of years
tsunami caused by an earthquake, it is a giant wave in the ocean; it can travel up to 450 mph, and over thousands of miles; can reach 50 to 100 feet high
rain shadow land on the leaward side of the mountain. it gets very little rain from the descending dry air
chaparral biome of drought resistant trees
latitude lines the set of imaginary lines that run parallel to the equator
globe three-dimensional representation of the earth
magma hot molten rock, can form in the mantle and rise through the crust
ring of fire a zone around the rim of the Pacific Ocean, is the location of the vast majority of active volcanoes
Humus an organic material in soil
tornado a powerful funnel-shaped column of spiraling air
prime meridian the imaginary line dividing the earth east and west
hemisphere the set of imaginary lines that divide the earth in to two equal halves, either north and south or east and west
topographic map a general reference map that is a representation of natural and manmade features on the earth
Created by: dmoudy