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7th Earth Science I
7th grade Earth Science Test I Review 2024
| Term | Definition |
|---|---|
| erosion | Geologic process in which sediment is moved by wind water glacier or gravity |
| weathering | The geologic process of turning rock into sediment |
| Delta | A collection of sediment that builds up when sediment from rivers hits larger bodies of water |
| Ice wedging | A physical way in which water can break apart rocks |
| water | the single greatest agent of erosion |
| Abrasion | The process of rocks and particles scraping against one another, wearing away their surfaces |
| Rocky Mountains | The great divide of North America |
| Reservoir | A large natural or man-made lake used to store water for later use |
| Runoff | Water that flows over the ground surface |
| Tributary | Small rivers or streams that flow into larger rivers or river systems |
| Watershed | An area of land that separates waters flowing into different rivers or seas |
| Wetland | An area of land covered by shallow water part or all of the year |
| Oxidation | chemical reaction in which a substance combines with oxygen (Iron rusting) |
| Aquifer | a layer of permeable rock underground that can contain or transmit groundwater |
| Permeable | substance that allows fluids to pass through them |
| Water table | The top edge of the zone of saturation |
| Geyser | Erupting hot spring |
| Sediment | Tiny pieces or rock that are the end result of weathering |
| Meanders | The curved portions of older rivers |
| Silt | Small pieces of sediment that are suspended near the top of the river |
| Traction | The larger pieces of sediment that when weathered will roll or slide down a river |
| Sandbars | Areas of deposition on the inside of a curve in a river |
| Delta | An area of deposition that occurs where a river enters an ocean or lake |
| Alluvial fan | A land feature that is created at the end of a mountain river where there is no lake or ocean |
| Secondary | The type of succession that may begin with abandoned farmland |
| Lichen | A species of algae that can live on bare rock |
| Volcano | a geologic event that usually precedes primary succession |
| Soil | The main difference between primary and secondary succession |
| Climax community | The ecosystem that exists at the end of any succession |
| Biodiversity | the variety of living things in an area |
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coach_fletcher
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