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
Science
Earth Science Vocab
| Question | Answer |
|---|---|
| sediment deposited by running water | alluvium |
| fossil gum from the sap of ancient plants; may contain trapped and preserved insects and spiders | amber |
| on the ocean floor | benthic |
| giant summit depression of a volcano | caldera |
| chemical substance containing more than one element in fixed amounts | compound |
| curved fracture which is characteristic of some rocks and minerals such as quartz | conchoidal |
| theoretical shift of continents due to weakness in the suboceanic crust | continental drift |
| outer layer of the earth's surface | crust |
| separate from a solution or melt as a solid | crystallize |
| triangular-shaped deposit at the mouth of a stream | delta |
| mass of a body divided by its volume; | density |
| chemical and physical processes which transform soft sediment into consolidated rock; these take place near the earth's surface at low temperatures and pressures | diagenesis |
| movement of the earth's crust, creating mountains, oceans, and ocean basins | diastrophism |
| intrusion of igneous rock in older rocks with a high angle of dip | dike |
| glacial hill | drumlin |
| hills of loose sand created by wind | dunes |
| part of earth's surface that is directly above the origin of an earthquake | epicenter |
| division of geologic time smaller than a period, such as pliocene | epoch |
| gradual wearing away of the earh's surface by wind, water, and ice | erosion |
| the face or slope of a cliff | escarpment |
| cracking or peeling of rocks on the surface | exfoliation |
| molten, volcanic rocks which have cooled on the surface of the earth | extrusive |
| break or fracture in earth's crust | fault |
| crack in the earth's interior through which lava flows | fissure |
| bend in the rock strata | fold |
| consisting of thin parallel layers, as in mica | foliation |
| mold, cast, or impression of all or part of ancient organisms that has been preserved in earh's crust; | fossil |
| study of the origin, history, and structure of the earth | geology |
| energy from the heat within earth's crust | geothermal energy |
| natural hot spring that intermittently ejects water and steam into the air | geyser |
| large body of slow moving ice and snow formed in areas where the rate of snowfall exceeds the rate of snow melt; | glacier |
| crystals with hollowed faces | hopper crystals |
| organic compounds containing only hydrogen and carbon provide natural resources such as fossil fuels | hydrocarbon |
| study of the effects of water on the earth's surface, soil, underlying rocks, and atmosphere | hydrology |
| rocks formed when molten material in or on earth's surface cools and hardens | igneous rocks |
| igneous material formed among pre-existing rocks below the surface | intrusive |
| crack in a rock mass that occurs as pressure decreases on that rock mass because the overlying rock is eroded away permitting the rock mass to expand | joint |
| depression in a glacier deposit formed by the melting of a covered block of ice | kettle |
| molten rock mixed with gases within the earth from which igneous rock is formed | magma |
| layer of earth just beneath the crust | mantle |
| to wander; riverbeds wander and widen as each flows through the path of least resistance, frequently giving a snake like path | meander |
| elements that are solid having characteristic luster, malleability, and high electrical and heat conductivity | metals |
| rocks that are formed when existing rocks undergo pressure and heat for extended periods of time | metamorphic rocks |
| naturally occuring, inorganic nongaseous substances wiht limited chemical variablitiy and distinctive internal crystalline structure | mineral |
| two or more substances combined in any amounts so that each retains its chemical identity | mixture |
| glacial deposits of gravel, sand, and boulders | moraine |
| natural mineral deposit from which metal can be extracted | ore |
| scientist who studies ancient life in fossil form | paleontologist |
| huge blocks of rocks that make up earth's crust | plates |
| ends of the axis of a planet; the ends of a magnet | poles |
| force per unit area | pressure |
| radioactive, gaseous chemical element formed by the decay of uranium in rocks and soil | radon |
| the sugary rock texture observed in marbles and quartzites | saccharoidal |
| coloration in certain minerals due to minute, rod-like inclusions of voids, iron ore, and other minerals | schillerization |
| medium to coarse metamorphic rocks composed of parallel layers such as mica and talc | schist |
| rocks formed by consolidation of sedimetns; examples: limestone, sandstone, shale | sedimentary rocks |
| instrument that measures and records the direction, intensity, and time of an earthquake | seismograph |
| scientists who study earth movements | seismologists |
| results when forces cause two adjacent parts of a solid to slide past one another in directions that are parallel to the plane of contact | shearing |
| most abundant group of minerals found in earth's crust | silicate |
| solid particles larger than clay particles but smaller than sand grains | silt |
| a by-product, resulting from a metallurgical process, which floats on molten metal | slag |
| ration of the weight of an object to the weight of an equal volume of water | specific gravity |
| distinct layers of sedimentary rocks | strata |
| fold in rock strata in which layers lean together from opposite sides; opposite of anticline; downfolded rock layers | syncline |
| geology of earth's structural deformation | tectonics |
| strong forward motion causing a horizontal movement of earth's crust | thrust |
| uppermost layer of soil | topsoil |
| condensable gas | vapor |
| an opening inearth's surface permitting the escape of gases, liquids, fumes, etc; the main lava chamber in the neck of a volcano | vent |
| processes that physically and chemically break apart and change rocks | weathering |
| gravitational force that earth exerts on an object | weight |
Created by:
platypusguy
Popular Science sets