Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Midterm
The midterm we have to take
| Question | Answer |
|---|---|
| What is a mineral? | a naturally formed inorganic solid with a definite crystalline structure. |
| What is an element? | A pure substance that cannot be broken down into simpler substances chemically |
| What is a compound? | 2 or more elements chemically bound |
| What is a crystal? | A solid whose atoms, ions, or molecules are arranged in a pattern |
| What is a silicate mineral? | A mineral with a combination of silicon and oxygen. |
| What is a non silicate mineral? | Minerals without silicon and oxygen |
| What are native elements? | Nonsilicate minerals |
| What are carbonates? | Native Elements formed from carbon and oxygen |
| What are halides? | Native elements with a salty taste, used in detergents |
| What are oxides? | Native elements used in aircraft parts and abrasives. |
| What are sulfates? | Sulfur and oxygen |
| What are sulfides? | Sulfur and one or more elements.. |
| What is luster? | The way a surface reflects light |
| What is color? | The way a rock looks |
| What is streak? | The powder a rock leaves on a slat of unglazed porcelain. |
| What is cleavage and fracture? | The tendency of a mineral to break a certain way. |
| What is hardness? | The ability of a mineral to resist scratching |
| What is density? | The ratio of mass to volume |
| What is the definition of special properties of minerals? | A mineral's special ability |
| What is fluorescence? | The ability of a mineral to glow under a UV light |
| What are optical properties? | When a mineral causes a double image when placed under a thin, clear piece of calcite. |
| What is chemical reaction? | When a mineral bubbles when a weak acid is placed on it |
| What is magnetism? | The ability of a mineral to attract metal |
| What is taste? | A mineral's taste on a tongue. |
| What is radioactivity? | A Minerals that can be detected by a Geiger counter. |
| What is ore? | A mineral that can be mined for profit. |
| What is reclamation? | The process of returning a land back to its original state. |
| What is a nonmetallic mineral? | A mineral that is dull and doesnt reflect light |
| What is a metallic mineral/ | A mineral that reflects light |
| What is a submetallic mineral? | A mineral that is dull but reflects light/ |
| What is a gemstone? | nonmetallic mineral that are valuable |
| What is a index mineral rock? | a rock that can be used to date other rocks. |
| What is the rock cycle? | The cycle by which rock is recycled. |
| What is erosion? | The movement of rocks from one place to another. |
| What is deposition? | The process which minerals are laid down. |
| What is composition? | What a rock is made of. |
| What is texture? | The way a rock feels. |
| What is igneous rock? | Rock that is cooled magma. |
| What is intrusive igneous rock? | Rock that is cooled magma located under Earth's surface. |
| What is extrusive igneous rock? | Rock that forms as a result of volcanic activity, located on, or beneath, the Earth's surface. |
| What are dikes? | Intrusions that cut across previous rock. |
| What are sills? | Sheetlike intrusions that are oriented parallel to rock. |
| What are batholiths? | The largest of all igneous rock intrusions. |
| What are stocks? | Intrusive bodies exposed to over smaller areas than batholiths. |
| What is a fissure? | Lava that flows from long cracks in the earth's crust. |
| What is a lava plateau? | Lava that covers a large area and forms a plain. |
| What is stratification? | The process when sedimentary rocks are arranged in layers. |
| What is sedimentary rock? | Sediment compacted and cementated together. |
| What is strata? | Layers of rock. |
| What is Metamorphic rock? | Rocks that undergo metamorphism. |
| What is nonfoliated metamorphic rock? | Metamorphic rock doesn't have mineral grains arranged in planes or bands. |
| What is foliated metamorphic rock? | The metamorphic rock texture with mineral grains arranged in planes or bands. |
| What is deformation? | a change in the shape of a rock caused by a force placed on it. |
| What is uniformitarianism? | The theory that stated Earth was geologically changed gradually. |
| What is catastrophism? | The theory that stated geologic change was sudden. |
| What is paleontology? | The study of fossils. |
| What is paleobotany? | The study of plant fossils. |
| What is relative dating? | An estimate of a fossils age. |
| What is superposition? | The theory that stated younger rocks lie above older rocks. |
| What is the geologic column?! | An ideal arrangement of all the,found,fossils and rock formations on Earth. |
| What is an unconformity? | a missing layer in the geo. column. |
| What is a disconformity? | A part of the sequence of parallel rock missing. |
| What is a nonconformity? | When horizontal sedimentary rock layer are on top of eroded surfaces of metamorphic or sedimentary rock. |
| What is an angular unconformity? | Below layers of horizontally layered sedimentary rock. |
| Explain absolute dating. | Using radiometric dating to find the absolute date of something. |
| What is an isotope? | When elements have the same number of protons, but a different number of neutrons. |
| Explain radiometric dating. | comparing the number of parent to daughter isotopes |
| What is a half-life? | The time is takes for 1/2 if a radioactive sample to decay. |
| What is a fossil? | A dead organic being preserved in a certain process. |
| What is a trace fossil? | A fossilized mark left through movement. |
| What is a mold? | a mark or cavity made in a surface by a hard outer part of an organic sample. |
| What is a cast? | A type of fossil that forms when sediments fill in the cavity left by a decomposed organism. |
| What is an index fossil? | a fossil that lived at one time |
| explain radioactive decay. | When an unstable isotope breaks down into a stable isotope. |
| What is the geologic time scale? | A scale that divides the Earth's history into parts. |
| What is an era? | The unit of geologic time that includes two or more periods. |
| What is an eon? | The largest division of geologic time. |
| What is a period? | A unit of geologic time that eras are divided. |
| What is an epoch? | A subdivision of a geologic time period. |
| What is extinction | The death of every member of a species. |
Created by:
Gregorygarr0
Popular Earth Science sets