GeologicTimeScaleA record ofthe geologicevents andlife forms inEarth’s history PaleontologistA scientistwhostudiesfossilsIgneousRockvolcanicrock wherefossils arenot foundFaultA breakin Earth'scrustCastFossilSolid copy ofthe shape ofan organism ThrinaxodonOne of the firstmammals toexist, hadseveral reptiliancharacteristicsPeriodThe secondshortest unitof geologicaltime (behindepochs) OverturnedFoldsThe onlycase whereyounger rocklayers canend upEraThe secondlargestdivision ofgeologicaltime TraceFossilA fossil thatshows theactivities ofancientorganisms EonsLongeststretch ofgeologictimeFossilRecordAll the fossilscollected andstudied bypaleontologistsPreservedRemainsWhen parts ofthe originalorganismremain, likeamber, ice, tar,mummies, etc.IntrusionAn igneous rocklayer that formswhen magmahardens beneathEarth’s surface FossilRemains orimpression of aprehistoricorganismpreserved inrockExtrusionAn igneous rocklayer that formswhen lava flowsonto Earth’ssurface andhardens IndexFossila fossil that isuseful for datingand correlatingthe strata inwhich it is found AbsoluteAgehe exact age therock given asthe number ofyears since therock formedGorgonopsidThe apexpredator of thepermian period;Had mammal-like teethSedimentaryRockThe onlytype of rickwhere fossilsare foundstromatolitesFossilizedsingle-celledorganisms thatstill remain theoldest fossils onEarthUnconformityBreak in timedue to erosionin an otherwisecontinuous rockrecord Law ofSuperpositionLaw stating thatlower rocklayers are olderand upper rocklayers areyounger CarbonFilmThin film of carbonthat forms as gasesand liquids areforced out of thebody due topressure and heat MoldFossilFossilizedimprint insediment inthe shape ofan organism EvolutionThe changein livingthings overmanygenerations PetrifiedFossilWhensedimentreplaces allor part of anorganism ExtinctRefers to agroup of relatedorganisms thathas died out andhas no livingmembers RelativeAgeThe age ofrocks ascompared toother rocks GeologicTimeScaleA record ofthe geologicevents andlife forms inEarth’s history PaleontologistA scientistwhostudiesfossilsIgneousRockvolcanicrock wherefossils arenot foundFaultA breakin Earth'scrustCastFossilSolid copy ofthe shape ofan organism ThrinaxodonOne of the firstmammals toexist, hadseveral reptiliancharacteristicsPeriodThe secondshortest unitof geologicaltime (behindepochs) OverturnedFoldsThe onlycase whereyounger rocklayers canend upEraThe secondlargestdivision ofgeologicaltime TraceFossilA fossil thatshows theactivities ofancientorganisms EonsLongeststretch ofgeologictimeFossilRecordAll the fossilscollected andstudied bypaleontologistsPreservedRemainsWhen parts ofthe originalorganismremain, likeamber, ice, tar,mummies, etc.IntrusionAn igneous rocklayer that formswhen magmahardens beneathEarth’s surface FossilRemains orimpression of aprehistoricorganismpreserved inrockExtrusionAn igneous rocklayer that formswhen lava flowsonto Earth’ssurface andhardens IndexFossila fossil that isuseful for datingand correlatingthe strata inwhich it is found AbsoluteAgehe exact age therock given asthe number ofyears since therock formedGorgonopsidThe apexpredator of thepermian period;Had mammal-like teethSedimentaryRockThe onlytype of rickwhere fossilsare foundstromatolitesFossilizedsingle-celledorganisms thatstill remain theoldest fossils onEarthUnconformityBreak in timedue to erosionin an otherwisecontinuous rockrecord Law ofSuperpositionLaw stating thatlower rocklayers are olderand upper rocklayers areyounger CarbonFilmThin film of carbonthat forms as gasesand liquids areforced out of thebody due topressure and heat MoldFossilFossilizedimprint insediment inthe shape ofan organism EvolutionThe changein livingthings overmanygenerations PetrifiedFossilWhensedimentreplaces allor part of anorganism ExtinctRefers to agroup of relatedorganisms thathas died out andhas no livingmembers RelativeAgeThe age ofrocks ascompared toother rocks 

Geologic Time Bingo - Call List

(Print) Use this randomly generated list as your call list when playing the game. There is no need to say the BINGO column name. Place some kind of mark (like an X, a checkmark, a dot, tally mark, etc) on each cell as you announce it, to keep track. You can also cut out each item, place them in a bag and pull words from the bag.


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  1. A record of the geologic events and life forms in Earth’s history
    Geologic Time Scale
  2. A scientist who studies fossils
    Paleontologist
  3. volcanic rock where fossils are not found
    Igneous Rock
  4. A break in Earth's crust
    Fault
  5. Solid copy of the shape of an organism
    Cast Fossil
  6. One of the first mammals to exist, had several reptilian characteristics
    Thrinaxodon
  7. The second shortest unit of geological time (behind epochs)
    Period
  8. The only case where younger rock layers can end up
    Overturned Folds
  9. The second largest division of geological time
    Era
  10. A fossil that shows the activities of ancient organisms
    Trace Fossil
  11. Longest stretch of geologic time
    Eons
  12. All the fossils collected and studied by paleontologists
    Fossil Record
  13. When parts of the original organism remain, like amber, ice, tar, mummies, etc.
    Preserved Remains
  14. An igneous rock layer that forms when magma hardens beneath Earth’s surface
    Intrusion
  15. Remains or impression of a prehistoric organism preserved in rock
    Fossil
  16. An igneous rock layer that forms when lava flows onto Earth’s surface and hardens
    Extrusion
  17. a fossil that is useful for dating and correlating the strata in which it is found
    Index Fossil
  18. he exact age the rock given as the number of years since the rock formed
    Absolute Age
  19. The apex predator of the permian period; Had mammal-like teeth
    Gorgonopsid
  20. The only type of rick where fossils are found
    Sedimentary Rock
  21. Fossilized single-celled organisms that still remain the oldest fossils on Earth
    stromatolites
  22. Break in time due to erosion in an otherwise continuous rock record
    Unconformity
  23. Law stating that lower rock layers are older and upper rock layers are younger
    Law of Superposition
  24. Thin film of carbon that forms as gases and liquids are forced out of the body due to pressure and heat
    Carbon Film
  25. Fossilized imprint in sediment in the shape of an organism
    Mold Fossil
  26. The change in living things over many generations
    Evolution
  27. When sediment replaces all or part of an organism
    Petrified Fossil
  28. Refers to a group of related organisms that has died out and has no living members
    Extinct
  29. The age of rocks as compared to other rocks
    Relative Age