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Weathering & Erosion
SOL 6.6d
| Question | Answer |
|---|---|
| Weathering | the breaking down of rock by physical or chemical methods |
| Erosion | The process by which sediment and other materials are moved from one place to another |
| Deposition | When sediment is dropped or deposited in a new location |
| Sediment | smaller material broken down by weathering |
| Ice Wedging | when ice in rock expands created cracks until the rock splits apart. |
| Types of Physical Weathering | ice wedging (temps change), animal action, plant growth, abrasion of water, wind, gravity, |
| Types of Chemical Weathering | acids in rain or groundwater, living organisms, oxidation (rusting) |
| Oxidation | when metal in rock reacts with liquid water & oxygen creating rust |
| Acid Rain | chemical in rainwater that ake it more acidic(lowe than 7 pH) |
| Abrasion | the rubbing of rock by particles carried by water, ice, wind or gravity |
| pH scale | scale used (0-14) to measure how acidic a substance is |
| How does Weathering, Erosion, & Deposition work togethering to create unique landforms on Earth's surface? | Water on Earth breaks down rocks on the surface through WEATHERING. The broken down SEDIMENT is then carried away through the process of EROSION and finally placed in new locations by way of DEPOSITION creating unique landforms. |