ExtinctRefers to agroup of relatedorganisms thathas died out andhas no livingmembers AbsoluteAgehe exact age therock given asthe number ofyears since therock formedExtrusionAn igneous rocklayer that formswhen lava flowsonto Earth’ssurface andhardens IntrusionAn igneous rocklayer that formswhen magmahardens beneathEarth’s surface ThrinaxodonOne of the firstmammals toexist, hadseveral reptiliancharacteristicsGeologicTimeScaleA record ofthe geologicevents andlife forms inEarth’s history PeriodThe secondshortest unitof geologicaltime (behindepochs) PaleontologistA scientistwhostudiesfossilsRelativeAgeThe age ofrocks ascompared toother rocks FossilRecordAll the fossilscollected andstudied bypaleontologistsEvolutionThe changein livingthings overmanygenerations 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 teethIgneousRockvolcanicrock wherefossils arenot foundPreservedRemainsWhen parts ofthe originalorganismremain, likeamber, ice, tar,mummies, etc.Law ofSuperpositionLaw stating thatlower rocklayers are olderand upper rocklayers areyounger OverturnedFoldsThe onlycase whereyounger rocklayers canend upUnconformityBreak in timedue to erosionin an otherwisecontinuous rockrecord EraThe secondlargestdivision ofgeologicaltime MoldFossilFossilizedimprint insediment inthe shape ofan organism stromatolitesFossilizedsingle-celledorganisms thatstill remain theoldest fossils onEarthFaultA breakin Earth'scrustEonsLongeststretch ofgeologictimePetrifiedFossilWhensedimentreplaces allor part of anorganism SedimentaryRockThe onlytype of rickwhere fossilsare foundFossilRemains orimpression of aprehistoricorganismpreserved inrockIndexFossila fossil that isuseful for datingand correlatingthe strata inwhich it is found TraceFossilA fossil thatshows theactivities ofancientorganisms ExtinctRefers to agroup of relatedorganisms thathas died out andhas no livingmembers AbsoluteAgehe exact age therock given asthe number ofyears since therock formedExtrusionAn igneous rocklayer that formswhen lava flowsonto Earth’ssurface andhardens IntrusionAn igneous rocklayer that formswhen magmahardens beneathEarth’s surface ThrinaxodonOne of the firstmammals toexist, hadseveral reptiliancharacteristicsGeologicTimeScaleA record ofthe geologicevents andlife forms inEarth’s history PeriodThe secondshortest unitof geologicaltime (behindepochs) PaleontologistA scientistwhostudiesfossilsRelativeAgeThe age ofrocks ascompared toother rocks FossilRecordAll the fossilscollected andstudied bypaleontologistsEvolutionThe changein livingthings overmanygenerations 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 teethIgneousRockvolcanicrock wherefossils arenot foundPreservedRemainsWhen parts ofthe originalorganismremain, likeamber, ice, tar,mummies, etc.Law ofSuperpositionLaw stating thatlower rocklayers are olderand upper rocklayers areyounger OverturnedFoldsThe onlycase whereyounger rocklayers canend upUnconformityBreak in timedue to erosionin an otherwisecontinuous rockrecord EraThe secondlargestdivision ofgeologicaltime MoldFossilFossilizedimprint insediment inthe shape ofan organism stromatolitesFossilizedsingle-celledorganisms thatstill remain theoldest fossils onEarthFaultA breakin Earth'scrustEonsLongeststretch ofgeologictimePetrifiedFossilWhensedimentreplaces allor part of anorganism SedimentaryRockThe onlytype of rickwhere fossilsare foundFossilRemains orimpression of aprehistoricorganismpreserved inrockIndexFossila fossil that isuseful for datingand correlatingthe strata inwhich it is found TraceFossilA fossil thatshows theactivities ofancientorganisms 

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