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Grade 6 Science
Rock Cycle Assessment
| Term | Definition |
|---|---|
| Three types of rocks | igneous, sedimentary, metamorphic |
| mineral | a solid inorganic = NON-living naturally occurring fixed chemical AND atomic structure form the make up of rocks |
| rock | a naturally occurring, inorganic=non-living, solid substance made of minerals |
| igneous | rocks formed by heating / melting and cooling |
| sedimentary | caused by heat and pressure deep under the Earth's surface |
| metamorphic | caused by heat and pressure deep under the Earth's surface |
| Physical Properties Used to Identify Minerals STREAK | the color of a mineral dragged over an unglazed ceramic tile |
| Physical Properties Used to Identify Minerals CLEAVAGE / FRACTURE | the tendency of a mineral to break |
| Physical Properties Used to Identify Minerals HARDNESS | how resistant a mineral is to being scratched |
| Physical Properties Used to Identify Minerals COLOR | the distinctive yellow of sulfur |
| Physical Properties Used to Identify Minerals MOH'S HARDNESS SCALE | - a measure of how easily a mineral can be scratched - refers to a material's ability to resist abrasion or scratching |
| weathering | the process of breaking down of rocks into smaller substances called sediment (such as: wind, ice, digging) |
| weathering | the process of breaking down of rocks into smaller substances called sediment (such as: wind, ice, digging) |
| erosion | the process of moving smaller pieces of rock (sediment) somewhere else using rain, sleet, hail, and water (streams, oceans) |
| deposit | noun: what is left behind after erosion (dirt, sand, sediment) verb: the leaving of something behind |
| fossil | the remains or impression of a prehistoric organism preserved as a mold or cast in rock. |
| lava | liquid rock from a volcano found on the Earth's surface |
| magma | liquid rock within a volcano below the Earth's surface |
| pressure | a strong force that is applied to something |