AbsoluteAgehe exact age therock given asthe number ofyears since therock formedFaultA breakin Earth'scrustMoldFossilFossilizedimprint insediment inthe shape ofan organism TraceFossilA fossil thatshows theactivities ofancientorganisms GeologicTimeScaleA record ofthe geologicevents andlife forms inEarth’s history stromatolitesFossilizedsingle-celledorganisms thatstill remain theoldest fossils onEarthThrinaxodonOne of the firstmammals toexist, hadseveral reptiliancharacteristicsPaleontologistA scientistwhostudiesfossilsLaw 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 GorgonopsidThe apexpredator of thepermian period;Had mammal-like teethExtrusionAn igneous rocklayer that formswhen lava flowsonto Earth’ssurface andhardens PeriodThe secondshortest unitof geologicaltime (behindepochs) ExtinctRefers to agroup of relatedorganisms thathas died out andhas no livingmembers RelativeAgeThe age ofrocks ascompared toother rocks FossilRemains orimpression of aprehistoricorganismpreserved inrockFossilRecordAll the fossilscollected andstudied bypaleontologistsEonsLongeststretch ofgeologictimeIgneousRockvolcanicrock wherefossils arenot foundOverturnedFoldsThe onlycase whereyounger rocklayers canend upEraThe secondlargestdivision ofgeologicaltime PreservedRemainsWhen parts ofthe originalorganismremain, likeamber, ice, tar,mummies, etc.CastFossilSolid copy ofthe shape ofan organism IntrusionAn igneous rocklayer that formswhen magmahardens beneathEarth’s surface PetrifiedFossilWhensedimentreplaces allor part of anorganism EvolutionThe changein livingthings overmanygenerations SedimentaryRockThe onlytype of rickwhere fossilsare foundIndexFossila fossil that isuseful for datingand correlatingthe strata inwhich it is found UnconformityBreak in timedue to erosionin an otherwisecontinuous rockrecord AbsoluteAgehe exact age therock given asthe number ofyears since therock formedFaultA breakin Earth'scrustMoldFossilFossilizedimprint insediment inthe shape ofan organism TraceFossilA fossil thatshows theactivities ofancientorganisms GeologicTimeScaleA record ofthe geologicevents andlife forms inEarth’s history stromatolitesFossilizedsingle-celledorganisms thatstill remain theoldest fossils onEarthThrinaxodonOne of the firstmammals toexist, hadseveral reptiliancharacteristicsPaleontologistA scientistwhostudiesfossilsLaw 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 GorgonopsidThe apexpredator of thepermian period;Had mammal-like teethExtrusionAn igneous rocklayer that formswhen lava flowsonto Earth’ssurface andhardens PeriodThe secondshortest unitof geologicaltime (behindepochs) ExtinctRefers to agroup of relatedorganisms thathas died out andhas no livingmembers RelativeAgeThe age ofrocks ascompared toother rocks FossilRemains orimpression of aprehistoricorganismpreserved inrockFossilRecordAll the fossilscollected andstudied bypaleontologistsEonsLongeststretch ofgeologictimeIgneousRockvolcanicrock wherefossils arenot foundOverturnedFoldsThe onlycase whereyounger rocklayers canend upEraThe secondlargestdivision ofgeologicaltime PreservedRemainsWhen parts ofthe originalorganismremain, likeamber, ice, tar,mummies, etc.CastFossilSolid copy ofthe shape ofan organism IntrusionAn igneous rocklayer that formswhen magmahardens beneathEarth’s surface PetrifiedFossilWhensedimentreplaces allor part of anorganism EvolutionThe changein livingthings overmanygenerations SedimentaryRockThe onlytype of rickwhere fossilsare foundIndexFossila fossil that isuseful for datingand correlatingthe strata inwhich it is found UnconformityBreak in timedue to erosionin an otherwisecontinuous rockrecord 

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