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

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