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Earths rocky outer layer -mostly solid rock |
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Destructive force that breaks down rocks into smaller pieces two types mechanical and chemical |
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Small pieces of rock that are broke off through mechanical weathering |
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Destructive force in which pieces of rock are moved by water, wind, or moving ice, gravity |
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Constrctive force in which sediments that have been moved from one place are dropped or released in another place, or change of state from gas to solid. |
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Lines on a topographical map that indicate areas with the same elevation or height above sea level |
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Map that shows the shape of surface features and their elevations above sea level |
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High landforms with flat surfaces |
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Content shelf-forms edges of continent gradually slopes down from sea level, slope-steeper, it falls many miles,forming side of content,, rise-atbbottom of slope, the ocean floor |
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Causes of mechanical weathering |
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Ice-as water freezes lit expands breaking rocks apart, moving air and water weakens rocks, plant roots grow through cracks, burrowing animals, peeling of outer layers as rocks are exposed. |
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Forces that move sediment |
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Huge steep sided mountains on the ocean floor. Deep ocean floor abyssal plain |
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Region beyond continental margin. Deep canyons called trenches. Mid ocean ridges. Under wate mountains. |
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Water dissolves minerals that make up rock, and affect soil and air making acid rain, dissolving rocks |
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Weak acids in rain seep into crust weathering rock slowly creates caves |
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Underground hollow areas created by weathering |
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When a river goes across flat areas it winds in smooth curves deposition occurs they increase in size when water erodesnthe outside ofnthe curve and deposits sediments on the inside of the curve |
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A low plain that forms where a river enters the ocean |
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Melted rock below earth's surface |
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How were Himalayas formed |
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How do glaciers create mountains |
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Glaciers round and carve out mountains |
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Silt sand gravel sharp rocks carried by glaciers |
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When enough lava. Builds up to form huge deposit with gently sloping sides |
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How are coral reefs formed? |
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Formation formed by coral in colonies. Die to produce ridges. Sometimes form around island that sinks but ridge still grows forming barrier reef |
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How did glaciers form thousands of years ago? |
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Huge mat. Of snow packed to form ice. Weight of ice so great that it pushed and dented land moving the ice form very slowly |
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What makes up earths surface? |
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Water and landforms-ocean, plateaus, valleys, mountains, hills, beaches |
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Narrow sections of land that jut out into the ocean |
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Long, narrow regions of low land between mountains or hills |
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Region beyond continental margin |
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