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Geog. & History A
WCHS Geog. & History A - Chapters 1-3
| Word | Definition |
|---|---|
| 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
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