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

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