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Earth Science Unit2
Test your knowledge of earth science!
| Term | Definition |
|---|---|
| Basalt | A dark, dense, extrusive igneous rock with a fine texture, found in oceanic crust |
| Carbonates | Family of minerals with one carbon and three oxygen atoms; fizzes to show a reaction with vinegar |
| Chemical | Type of sedimentary rock that forms as minerals in water crystallize |
| Clastic | Type of sedimentary rock that forms as sediments are cemented or compacted together |
| Cleavage | A mineral's ability to split easily along flat surfaces |
| Coal | Common sedimentary organic rock that is used as an energy source |
| Color | Property of minerals that may be used to help in identification, but not as reliable as its streak |
| Composition | Determined by the elements and compounds found in minerals and rocks |
| Compounds | Two or more substances that are chemically combined; such as silicon dioxide or SiO2 |
| Crystal | Regular repeating pattern found in minerals |
| Crystallization | Process by which crystals form in a mineral or rock |
| Density | Mass per unit of volume, such as g/ml |
| Deposition | Process in which sediment is laid down in new locations |
| Erosion | Process by which weathered rock and soil are moved from one place to another |
| Extrusive | Igneous rock that forms at or above Earth's surface; cools quickly which results in small crystals |
| Foliated | Type of metamorphic rock with minerals arranged in band or layers |
| Fracture | The way a mineral looks when it breaks apart in an irregular way |
| Gemstone | A hard, colorful mineral that has a brilliant or glassy luster and is valued for its appearance |
| Granite | Common instrusive igneous rock used as a building material |
| Igneous | Type of rock that forms from magma or lava |
| Inorganic | Not from a living thing |
| Intrusive | Igneous rock that forms inside the Earth; cools slowly which results in larger crystals |
| Luster | The way a mineral reflects light |
| Magnetism | Property of some minerals to attract and/or act as a magnet |
| Marble | Metamorphic rock (nonfoliated) that is used as a building material created from calcite (limestone) |
| Metamorphic | Type of rock that forms from great heat and pressure |
| Mineral | A solid, inorganic material that makes up rocks |
| Mohs | Scale used to rate the hardness of a mineral |
| Native Element | Family of minerals composed of only one element, such as copper and gold |
| Nonfoliated | Type of metamorphic rock without an orderly arrangement of minerals |
| Ore | A rock that contains a large enough concentration of a mineral making it profitable to mine |
| Organic | Type of sedimentary rock that forms from the remains of plants and animals |
| Rock Cycle | A series of processes on the surface and inside Earth that slowly changes rocks from one kind to another |
| Rock Salt | Chemical sedimentary rock formed as halite is deposited when water evaporates; used as a deicer |
| Sedimentary | Type of rock that forms from sediments |
| Sediments | Loose materials such as rock fragments, mineral grains, and bits of shell that have been moved by wind, water, ice, or gravity |
| Silicates | One of the most common mineral families that contains silicon and oxygen along with at least one other element |
| Slate | Foliated metamorphic rock formed from shale |
| Streak | Color of a mineral when ground into a powder |
| Weathering | The breaking down of rocks and other materials on the Earth's surface by wind, rain, and other forces |
Created by:
ttomm