Term
| a map that shows the shape and elevation of the land surface (the surface features of an area). |
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Definition
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| connect points on land that have the same ELEVATION. |
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| vertical differences between two CONTOUR LINES. |
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| every 5th line which is darker than the rest to make the map easier to read. |
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| When there ARE many contour lines close together this shows a |
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| When the contour lines are far apart this means |
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| a gentle rise in elevation. |
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| Two or more contour lines merging indicate |
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Definition
| a cliff. The more lines the stepper the cliff. |
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| The rule of Vs: sharp-pointed Vs usually are in stream valleys,with the V pointing ____________________. |
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| A cluster of many contour lines that form smaller and smaller circles show a _____________. |
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| Short lines pointing downwards (hatch marks) indicate a _____________. |
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| Breaks down rocks but does not change the chemical composition of the rocks. |
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Definition
| Mechanical weathering is a physical change. |
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| – Breaks down rocks by changing them into new materials. Most chemical weathering is caused by water combining with oxygen or carbon dioxide to form an acid that will break down the rocks or physically change them into a weaker rock. |
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| This occurs when explanation and freezing of water in cracks of rocks. This causes the rocks to break along these cracks. The action is known as ice wedging. |
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| As a layer of rock breaks off it releases pressure from the layers underneath. The rock underneath, due to the decreased pressure, expands and starts to crack |
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| Wearing away of rocks by solid particles. |
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| a plant growing the crack of a rock can cause the crack to become larger as the plant’s roots grow and spread out. |
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Definition
| Organic Activity – (Root Pry) |
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Term
| can pull loose rocks down a mountain side in a landslide. |
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| this forms carbonic acid (the acid used in Pepsi and Coke) It can weather limestone and feldspar |
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| Water and carbon dioxide – |
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| this forms when sulfur is released into the air from burning coal that contains sulfur. This then forms acid rain. |
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| the loosening and moving of rock and soil from one place to another by natural means. |
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| a major cause of erosion. |
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| This agent of erosion can carry soil in great dust storms similar to those of the 1930’s in Oklahoma. |
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| Wind erosion takes place in : |
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Definition
| deserts, plowed fields, and beaches. Also in areas where a drought occurs |
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| large areas of ice hundreds of meters thick. |
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| Tlaus, mudflow, landslides and slumping are all an example of: |
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Definition
| mass wasting or mass movement |
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| Mass wasting is caused by: |
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| This agent of erosion can erode and shape the shoreline,by hitting on a shore cause abrasion and erosion. |
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| True or false there is no need for me to look at the powerpoint. |
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Definition
| False, go look at the power point! |
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| True or false more time with the power point will help me do better on the test. |
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