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COVERT- Processes
COVERT Minerals, Rocks, Rock cycle, Earth's Layers, Processes
| Term | Definition |
|---|---|
| crystal | has an orderly and definite pattern of atoms |
| cleavage | a break resulting in smooth regular planes that reflect light |
| fracture | broken into jagged rough edged peices |
| color | can help you identify or classify rocks or minerals |
| streak | a clue to help identify rock type |
| luster | shiny, dull, pearly, light reflection, metalic, earthy |
| Moh's Hardness Scale | a scale from 1-10 using fingernails, pennys, glass, steel, a streak plate, etc. to help identify minerals |
| specific gravity | weight of an equal volume of water |
| gem | rare and valuable minerals that are cut and polished with few blemishes, beautiful |
| ores | useful substance, mined and sold for a profit |
| igneous | melted rock from inside Earth that cools and hardens (type of rock) |
| extrusive | igneous rock that exits the magma chamber as lava and cools rapidly with little or no crytals |
| intrusive | igneous rock that cools inside the magma chamber and hardens slowly creating larger crystals. |
| sediment | broken peices of rock, shells, minerals |
| sedimentary rock | sediment hardened into layers, carried, dropped, deposited, by wind, ice, gravity, water (type of rock) |
| chemical rocks | created when mineral rich water from geysers, salty lakes, hot springs, evaporates leaving deposits behind |
| biochemical rock | sedimentary rock with deposits of once living organisms |
| grains | individual peices of rock |
| texture | size, shape and arrangement of grains |
| foliated | metamorphic rocks that have a layered appearance, stripes or bands produced by heat and pressure |
| non-foliated | metamorphic rock formed with low pressure and high temperatures with no indications of banded layers |
| metamorphic rock | alteration (change) of the structure of the rock by heat or pressure (type of rock) |
| rock cycle | a continuous change process undergone by rocks in the earth's crust |
| minerals | inorganic solid materials found in nature having a definite chemical make up and orderly arrangement of atoms |
| Continental Drift | continents moved slowly over time to their current locations |
| Plate Tectonics | Earth's crust and part of the upper mantle are broken into sections known as plates which are part of the lithosphere, and float on the (plastic-like layer) asthenosphere. |
| Wegener's clues | Alfred Wegener constructed his hypothesis about continental drift which was based on climate, rock, and fossil clues as well as the puzzle like fit of continents known as: |
| Earth's layers | core (inner and outer), mantle (inner and outer) crust (asthenosphere, lithoshere, continental) |
| Constructive processes | landforms building created from movement of material by landslides, earthquakes, volcanos, folding, deposition of sediment |
| Destructive processes | landforms breaking down which is destroyed from carrying away of material by landslides, erosion, weathering, |
| Dichotomous Key | a reference which one may use to classify by answering questions which lead to a clue to identify what one is looking for |
| Compaction | particles of sediment stick together and are pressed and pressured with clay |
| Cementation | binding together of particles of rock which are compacted and stick together |
| Pangea | All landmasses as one continent |
Created by:
MrsCovert
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