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 |