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8th EarthTest Review
Fletcher's 8th 2023 Earth Science Test Review
| Term | Definition |
|---|---|
| Volcanic Islands | The result of a tectonic plate moving over a hot spot |
| Pangaea | The name of the supercontinent that may have existed 200 million years ago |
| Harry Hess | The man who discovered that the sea floor was spreading |
| Folded Mountains | A crustal feature formed by the collision of two continental plates |
| Subduction | When tectonic plates collide and one is forced under the other |
| Continental Drift | The idea proposed by Alfred Wegner |
| Divergent | A plate boundary in which the plates are separating |
| Geology | The study of the earth; what it is made of and the processes that effect it |
| Convergent | A plate boundary in which the plates are colliding |
| Mesosaurus | Prehistoric lizard fossils found in both South America and Africa |
| Fault | A crack in the earth's crust |
| Lithosphere | The layer of the earth consisting of the upper mantle and the Earth's crust |
| Alfred Wegener | The man who couldn't prove his theory of continental drift |
| Glossopteris | Prehistoric fern fossil found in India and Antarctica |
| Mountains | What does the action of colliding tectonic plates produce? |
| Transform | Tectonic plate boundary in which the plates slide past one another |
| Mid Atlantic Ridge | A crustal feature formed in the middle of the Atlantic Ocean by a divergent boundary |
| Buoyancy | An upward pushing force in fluids |
| Convection | Warmer fluids become less dense and rise |
| Water | Substance that takes a long time to warm up and a long time to cool down |
| High Pressure | Air pressure created by cold, dry air |
| Doldrums | Low pressure areas with low winds found at or near the equator |
| Maritime Polar | A cold and moist air mass |
| Air Mass | A large body of air with consistent Temperature, moisture and air pressure |
| Weather Front | The boundary between two air masses |
| ThunderStorm | A weather event associated with a cold front |
| Clear | The type of skies in a High pressure air mass |
| Maritime Tropical | The air mass with the lowest air pressure |
| Coriolis Effect | Global atmospheric winds that make air currents spin clockwise in the Northern hemisphere and counterclockwise in the Southern |
| Gyres | Large circular ocean surface currents that are bordered by continents. |
| Sea Breeze | local winds created by strong convection over land next to an ocean. |
| Gulf Stream | Large surface current that carries warmer temperatures from Florida to Europe |
| Delta | A collection of sediment that builds up where a river meets a larger body of water |
| Topographic Map | A flat map that shows relief |
| elevation | On a map, what is relief? |
| Erosion | The process by which sediment is moved by wind, water, glacier or gravity |
| Weathering | The process of turning rock into sediment |
| Steep slope | what do closely spaced contour lines on a map show? |
| contour | ___________ lines that connect areas of equal elevation |
| Depression | Another name for a hole in the ground |
| water | the single greatest agent of erosion |
| relief | Elevation on a map |
| contour Interval | The change in elevation from one contour line to the next |
| Profile | A view of an object from the side |
| Ice Wedging | A physical way in which water can break apart rocks |
| Mechanical weathering | Physical breakdown of rock |
| Alluvial Fan | A deposit of sediment at the base of a mountain |
| Iron Oxide | Product of Water , Iron and time |
| Rust | Another name for Iron oxide |
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coach_fletcher
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