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SSA Review - Earth
Earth Science SSA Review
| Question | Answer |
|---|---|
| Weathering | Breaking down rock into smaller pieces of sediment |
| Erosion | The movement of sediment from one place to another |
| Depostion | Sediment settles in a new location |
| Geosphere | The rocky part of the earth... land, soil, rocks, continents |
| Hydrosphere | All water on earth |
| Cryosphere | Frozen water on earth... ice caps, glaciers |
| Biosphere | The living systems of earth |
| Atmosphere | The layer of air that surrounds the planet |
| Thermosphere | The outermost layer of the atmosphere, very hot |
| Mesosphere | The layer of the atmosphere that protects the earth from meteors |
| Stratosphere | The layer of the atmosphere that contains the ozone layer, and absorbs UV radiation |
| Troposphere | The lowest layer of the atmosphere, that contains weather and clouds |
| UV Radiation | Dangerous rays from the sun that cause skin cancer. We are protected from these by the Ozone layer |
| Climate Change | Change in the average temperature of the planet due to increased amounts of carbon dioxide in the atmosphere |
| Weather | The current conditions in a particular area |
| Climate | The long-term pattern of a region |
| Radiation | Heat that travels through space. Ex: heat from the sun |
| Conduction | Heat that travels through contact. Ex: Warm ocean water heats the air through contact |
| Convection | Warm air and/or liquid heats and rises up... then cools and sinks, creating a cycle |
| Igneous Rock | Made from cooled magma/lava |
| Metamorphic Rock | Made from other types of rock, changed by heat and pressure inside the earth |
| Sedimentary Rock | Rock made from built up sediments |
| Crust | Surface layer of the earth, contains the tectonic plates |
| Mantle | Melted rock (magma) moves in convection currents underneath the crust |
| Outer Core | Liquid, center of the earth |
| Inner Core | Solid, center of the earth |
| Theory of Plate Tectonics | The crust is made of tectonic plates that move |
| Continental Drift Theory | Continents were once connected in a super-continent, Pangaea. Over millions of years they separated and moved to their current locations |
| Convergent Boundary | Plates that push together |
| Divergent Boundary | Plates that pull apart |
| Transform Boundary | Plates that move parallel to each other |
| Law of Superposition | Newer rocks are on top... older rocks are deeper. |
| Relative Dating | Uses law of superposition to determine approximate age of rocks compared to others around them. |
| Absolute Dating | Uses radioactive dating (carbon dating) to determine the more exact age of a rock/fossil by measuring radioactive decay of atoms. |
Created by:
Stszerdy
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