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ECS vocab
| Question | Answer |
|---|---|
| representation of the features of a physical body such as Earth | map |
| fixed place on Earth's surface from which direction and location can be described | reference point |
| north, south, east, west | cardinal directions |
| distance north or south of the equator | latitude |
| distance east or west of the prime meridian | longitude |
| map showing the surface features of Earth | topographic map |
| height of an object above sea level | elevation |
| line that connects point of equal elevation | contour line |
| difference in elevation between one contour line and the next | contour interval |
| variations in elevation of a land surface | relief |
| every fifth contour line that is darker | index contour |
| process by which rock materials are broken down | weathering |
| breaking down of rock by physical means | mechanical weathering |
| grinding and wearing away of rock surfaces through the mechanical action of other rock particles | abrasion |
| process by which rocks break down as a result of chemical reactions | chemical weathering |
| rain, sleet, show that contains a high concentration of acids | acid precipitation |
| chemical reaction - element combines with oxygen | oxidation |
| process by which less resistant rocks wear away, leaving more resistant rocks behind | differential weathering |
| mixture of rock fragments,organic material, air and water - can support vegetation | soil |
| layer of rock beneath the soil | bedrock |
| dark, organic material formed in soil from the decayed remains of plants and animals | humus |
| process by which wind, water, ice, or gravity transport soil and sediment from one location to another | erosion |
| boundary between land and water | shoreline |
| area of shoreline made up of material deposited by waves or rivers | beach |
| mound of wind blown sand | dune |
| large mass of moving ice | glacier |
| unsorted rock material deposited by glaciers | till |
| sudden movement of rock and soil down a slope | landslide |
| slow downhill movement of weathered rock material | creep |