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8th science ch 7
8th grade science chapter 7 vocabulary
Term | Definition |
---|---|
Topography | variety of an area’s elevations & arrangement of landforms. |
Isostasy | the balance of the weights of rock, water, and ice, and the upward force of the mantle |
Landform | shapes and structures on the earth’s surface |
Orogeny | tectonic process that formed mountains |
Mountain | a natural elevation of the earth’s surface rising more or less to a summit |
Hill | a natural elevation of the earth’s surface, but less than other elevations |
Elevation | measurements above sea level |
Actual Height | the height of its summit above the lowest elevation of the base |
Relief | the difference in height between the highest and lowest elevation of the terrain |
Mountain Range | a series of mountain peaks in the same geographical area |
Mountain System | a group of ranges connected over a large area |
Fold Mountain | mountains that form from folded rock strata |
Erosional Mountain | residual mountains; mesas or buttes |
Depositional Mountain | formed by a buildup of sediments by wind or glaciers |