| Scrambled Science Vocab | Answer Pattern | Definition |
| Evolution | _E_ _v_ _o_ _l_ _u_ _t_ _i_ _o_ _n_ | the change in species over time |
| Chemical Weathering | _C_ _h_ _e_ _m_ _i_ _c_ _a_ _l_ _W_ _e_ _a_ _t_ _h_ _e_ _r_ _i_ _n_ _g_ | process by which rocks & minerals undergo changes in their composition |
| Unconformity | _U_ _n_ _c_ _o_ _n_ _f_ _o_ _r_ _m_ _i_ _t_ _y_ | gap in the rock record |
| Mass Extinction | _M_ _a_ _s_ _s_ _E_ _x_ _t_ _i_ _n_ _c_ _t_ _i_ _o_ _n_ | occurs when an unusally large # of organisms disappear |
| Geologic Time Scale | _G_ _e_ _o_ _l_ _o_ _g_ _i_ _c_ _T_ _i_ _m_ _e_ _S_ _c_ _a_ _l_ _e_ | record of Earth~q1s history from its origin |
| Extrusive | _E_ _x_ _t_ _r_ _u_ _s_ _i_ _v_ _e_ | fine-grained igneous rock that is formed when molten rock cools slowly and solidifies inside Earth~q1s surface |
| Geology | _G_ _e_ _o_ _l_ _o_ _g_ _y_ | study of materials that make up Earth |
| Intrusive | _I_ _n_ _t_ _r_ _u_ _s_ _i_ _v_ _e_ | coarse-grained igneous rock that is formed when molten rock cools slowly |
| Contact Metamorphism | _C_ _o_ _n_ _t_ _a_ _c_ _t_ _M_ _e_ _t_ _a_ _m_ _o_ _r_ _p_ _h_ _i_ _s_ _m_ | local effect that occurs when molten rock meets solid rock |
| Granitic Rock | _G_ _r_ _a_ _n_ _i_ _t_ _i_ _c_ _R_ _o_ _c_ _k_ | light-colored rock that has high silicia content |
| Deposition | _D_ _e_ _p_ _o_ _s_ _i_ _t_ _i_ _o_ _n_ | occurs when sediments are laid down on the ground or sink to the bottom f a body of water |
| Metamorphic Rock | _M_ _e_ _t_ _a_ _m_ _o_ _r_ _p_ _h_ _i_ _c_ _R_ _o_ _c_ _k_ | rock alteres by pressure and heat |
| Nonfoliated | _N_ _o_ _n_ _f_ _o_ _l_ _i_ _a_ _t_ _e_ _d_ | matamorphic rocks like quartize and marble, composed mainly of minerals that form with blocky crystal shapes |
| Igneous Rock | _I_ _g_ _n_ _e_ _o_ _u_ _s_ _R_ _o_ _c_ _k_ | intrusive or extrusive rock formed from he cooling & crystallization of magma or lava. |
| Foliated | _F_ _o_ _l_ _i_ _a_ _t_ _e_ _d_ | metamorphic rock whose minerals re squeezed under high pressure & arranged in wavy layers and bonds |
| Basaltic Rock | _B_ _a_ _s_ _a_ _l_ _t_ _i_ _c_ _R_ _o_ _c_ _k_ | dark-colored rock has lower silica content |
| Cementation | _C_ _e_ _m_ _e_ _n_ _t_ _a_ _t_ _i_ _o_ _n_ | process of sedimentary rock formation that occurs when dissolving minerals precipitate out of ground water |
| Sedimentary Rock | _S_ _e_ _d_ _i_ _m_ _e_ _n_ _t_ _a_ _r_ _y_ _R_ _o_ _c_ _k_ | rock that has formed from consolidated clay sediments |
| Compaction | _C_ _o_ _m_ _p_ _a_ _c_ _t_ _i_ _o_ _n_ | the consolidation of sediments resulting from the weight of overlying deposits |
| Sediments | _S_ _e_ _d_ _i_ _m_ _e_ _n_ _t_ _s_ | solid particles deposited on Earth~q1s surface that can form sedimentary rocks |
| Mechanical Weathering | _M_ _e_ _c_ _h_ _a_ _n_ _i_ _c_ _a_ _l_ _W_ _e_ _a_ _t_ _h_ _e_ _r_ _i_ _n_ _g_ | process that breaks down rocks and minerals into smaller pieces but doesn~q1t involve any change in their composition |
| Magma | _M_ _a_ _g_ _m_ _a_ | molten material found eneath Earth~q1s crust that flows minerals with large crystals when it cools slowly |
| Weathering | _W_ _e_ _a_ _t_ _h_ _e_ _r_ _i_ _n_ _g_ | chemical or mechanical process that breaks down and changes rocks on or near Earth~q1s surface |
| Lava | _L_ _a_ _v_ _a_ | magma that lows out into Earth~q1s surface |
| Erosion | _E_ _r_ _o_ _s_ _i_ _o_ _n_ | movement of wearthered materials from one location to another |
| Rock Cycle | _R_ _o_ _c_ _k_ _C_ _y_ _c_ _l_ _e_ | continuous, dynamic set of processes by which rocks are changed into other types of rock |
| Correlation | _C_ _o_ _r_ _r_ _e_ _l_ _a_ _t_ _i_ _o_ _n_ | matching of rock outcrops of one geographic region to another |
| Index Fossils | _I_ _n_ _d_ _e_ _x_ _F_ _o_ _s_ _s_ _i_ _l_ _s_ | remains of plants r animals that can be used by geologists |
| Half Life | _H_ _a_ _l_ _f_ _L_ _i_ _f_ _e_ | the time required for one-half of a radioisotope~q1s nuclei to decay into its products |
| Radioactive Decay | _R_ _a_ _d_ _i_ _o_ _a_ _c_ _t_ _i_ _v_ _e_ _D_ _e_ _c_ _a_ _y_ | emmisions of radioactive particles and its resulting change |
| Radioactive Isotopes | _R_ _a_ _d_ _i_ _o_ _a_ _c_ _t_ _i_ _v_ _e_ _I_ _s_ _o_ _t_ _o_ _p_ _e_ _s_ | an element with an unstable nuclei |
| Absolute Dating | _A_ _b_ _s_ _o_ _l_ _u_ _t_ _e_ _D_ _a_ _t_ _i_ _n_ _g_ | method that enables scientists to determine the actual age of certain rocks and other objects |
| Relative Dating | _R_ _e_ _l_ _a_ _t_ _i_ _v_ _e_ _D_ _a_ _t_ _i_ _n_ _g_ | establishing the order of past geological events |
| Crosscutting Relationship | _C_ _r_ _o_ _s_ _s_ _c_ _u_ _t_ _t_ _i_ _n_ _g_ _R_ _e_ _l_ _a_ _t_ _i_ _o_ _n_ _s_ _h_ _i_ _p_ | the principle that an intrusive is younger than the rock it cuts across |
| Superposition | _S_ _u_ _p_ _e_ _r_ _p_ _o_ _s_ _i_ _t_ _i_ _o_ _n_ | the principle that the oldest rocks are on the bottom |
| Original Horizontality | _O_ _r_ _i_ _g_ _i_ _n_ _a_ _l_ _H_ _o_ _r_ _i_ _z_ _o_ _n_ _t_ _a_ _l_ _i_ _t_ _y_ | the principle that sedimentary rocks are deposited in horizontal layers |
| Geologic Column | _G_ _e_ _o_ _l_ _o_ _g_ _i_ _c_ _C_ _o_ _l_ _u_ _m_ _n_ | record of Earth~q1s history from its origin 4.6 bya to the present |
| Epoch | _E_ _p_ _o_ _c_ _h_ | time unit in the geological time scale smaller than a period |
| Period | _P_ _e_ _r_ _i_ _o_ _d_ | third longest time unit |
| Era | _E_ _r_ _a_ | second longest time unit |
| Eon | _E_ _o_ _n_ | longest time unit in the geological time scale |
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