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science
rocks and minerals
| ? | A |
|---|---|
| nonmetals | elements that have dull surfaces and are poor conductors of electricity and heat |
| cleavage | the tendency of a mineral to split along smooth, definite surfaces |
| hardness | the ability of a mineral to resist being scratched |
| ores | used to describe minerals or combinations of minerals from which metals and non-metals can be in usable amounts |
| fracture | the tendancy of a mineral to split along rough or jagged surfaces |
| extrusive rocks | rocks formed from lava |
| metals | elements that have shiny surfaces and are able to conduct elecricity and heat |
| igneous | were originally hot, fluid magma within the earth |
| rock cycle | the continuous changing of rocks from one kind to another over long periods of time |
| metamorphic | are formed when chemical reactions tremendous heat, and/or great pressure change existing rocks into new kinds of rocks |
| density | the amount of matter in a given space |
| streak | the color of powder scraped off a mineral when it is rubbed against a hard, rough surface |
| rocks | the building blocks of earth |
| luster | describes the way a mineral reflects light from its surface |
| gemstones | the minerals that are hard, beautiful, and durable substances that can be cut and polished for jewelry and decoration |
| mineral | naturally occuring, inorganic solid that has a definite chemical composition and chrystal structure |
| crystal | has flat sides that meet in sharp edges and corners |
| inorganic | not man made and not made from the remains of living things |
| sediments | the particles that form sedimentary rocks |
| instrusive rocks | igneous rocks formed deep within earth |
| sedimentary | formed from particles that have been carried along and deposited by wind and water |
| metamorphism | the changing of one type of rock into another as a result of heat, pressure, and/or chemical reactions |
| what are the 4 characteristics a mineral has to have to be a mineral? | always a solid. forms in nature. has a definite chemical make-up. has a specific crystal structure. |
| what are the most common mineral groups? | silcates, carbonates, and oxides |
| what are silcates made out of? | silicon and oxygen |
| what are carbonates made out of? | carbon and oxygen |
| what are oxides made of? | oxygen and metal |
| what are the properties of a mineral? | color, luster, hardness, streak, crystal shape, cleavage, and fracture |
| why is color not reliable? | b/c the color of a mineral can change b/c of exposure to weather, pollution, or radiation |
| what is the name of the hardness scale? | MOH's hardness scale |
| what is the softest mineral? | talc |
| what is the hardest mineral? | diamond |
| what are some "special" properties of minerals? | how it looks under uv light, if it's radioactive, if it tastes strange :) |
| what mineral are cars and airplanes made out of? | metal(s) |
| what is glass made out of? | quartz and feldspar |
| what is toothpaste made out of? | flourite and calcite |
| what is photo film made out of? | silver |
| what is paint made out of? | mica and talc |
| what are the 2 kinds of gemstones? | precious and semi-precious |
Created by:
lillmissbossy
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