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Science final <3
science final
| Question | Answer |
|---|---|
| a naturally formed inorganic solid that has a definite crystaline structure | mineral |
| a substance that cant be seperated or broken down into simmilar substances by chemical means | element |
| a substance made of atoms of two or more different elements joined by chemical bonds | compound |
| a solid whose atoms ions or molecules are arranged in a definite pattern | cyrstal |
| a mineral that contains a combination of scilicon oxygen and one or more elements | sillicate |
| a mineral that does not contain compounds of sillicon and oxygen | non-sillicate minerals |
| the way in which a mineral reflects light | luster |
| the color of the powder of a mineral | streak |
| the splitting of a mineral along a smooth flat surface | cleavage |
| mineral containing only one elelment | native element |
| the manner in which a mineral breaks along irregular surfaces | fracture |
| the measure of the ability of a mineral to resist scratching | hardness |
| the ratio of the mass of a substance to the volume | desity |
| mineral that has hight economic value | ore |
| the process of returning land to its original condition after mining | reclamation |
| formed from carbon and oxygen | carbonates |
| salty taste used in detergent | halides |
| used in aircraft parts | oxides |
| sulfer and oxygen | sulfates |
| sulfer plus one more element | sulfides |
| a proprty that only relates to some elements | special properties |
| a property that makes some elements glow in light | fluorescence |
| when a chemical reacts with a element | chemical reaction |
| property that changes visual efects | optical properties |
| when an element is attracted to metal | magnetism |
| the flavor of an element | taste |
| when an element contains radioactie elements | radioactivity |
| a bright and reflective mineral | meallic minerals |
| dull minerals | nonmetallic mierals |
| stones mainly used for beauty not for usefulness | gemstones |
| the process by which a rock forms, changes, is destroyed, and forms again | rock cycle |
| the process by which wind, water, ice, or gravity transports soil from one point to the next | erosion |
| the process by which the materialis laid down | deposistion |
| the chemical make up of a rock | composition |
| shape, size, and position of the rocks grains= | texture |
| the rock that forms from hardened magma | igneous rock |
| rock formed from the cooling of magma inside earths crust | intrusive igneous rock |
| rock that forms as a result of volcanic activity near or at the earths surface | extrusive igneous rock |
| sheet like intrusions that cut across previous rock | dikes |
| sheetlike intrusions that are joined with previous rock units | sills |
| largest intrusions | batholiths |
| intrusive bodies that are exposed oer smaller areas | stocks |
| what it is called when lava flows through earths cracks | fissures |
| when lava spreads across a large area of land and hardens | lava plateau |
| the process in which sedimentary rocs are arranged in layers | stratafication |
| eroded ign. rock that erodes and becomes.... | sed. rock |
| layers of a rock | strata |
| when sed. rocks go under alot of pressure and become... | metamorphic rock |
| when the texture of the metamorphic rock isarranged in planes or bands | foliated meta. rock |
| when the texture of a metamorphic rock is not arranged in planes or bands | nonfoliated meta. rock |
| a change in rock shape because of force applied to it | deformation |
| a priniple that states that geo. processes that occurredinte past can be explained by current geo. processes | uniformitarianism |
| a principle that sates that geo. change occurs suddenly | catastrophism |
| the scientific study of fossils | paleonology |
| the study of plants and animals | paleobotany |
| a method of determining wheather an object is older or yunger than another object | relative dating |
| a principle that states that younger rocks lie above older rocks if the layers have not been disturbed | superposition |
| arrangement of rock layes i which the older ones are on the bottom (ideal) | geo. column |
| a break in geo. time record | uncomformity |
| parallel rock is missing | discomformity |
| horizontal rock layers are missing | nonconformity |
| tilted or folded missing layers | angular uncomformity |
| measuring the rock age in years | absolute dating |
| an element that has the same # of protons but a diff. # of neutrons | isotope |
| unstable becomes stable | radioactive decay |
| finding age of parent and daughter isotopes to dtermine the age | radiometric dating |
| the time needed for halfo a radio active substance to undergo radoactive decay | half-life |
| the remains or phsical evidence of an organism presreved by geo. prcesses | fossil |
| soft sed. formed by movement of an animal | trace fossil |
| a mark or cavity made in a sed. surface by a shell or oter body | mold |
| sed. fills a cavity | cast |
| a fossil that is formed in the rock layers of only one geo. age and that is used to establish age | index fossil |
| divides earths history into manageable parts | geo. time scale |
| largest division of time | eon |
| a unit of time that ncludes two or more periods | era |
| time that is divided into two eras | period |
| a subdivision of geo. time (smallest) | epoch |
| the death of every member in a species | extinction |
Created by:
sydney13
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