PaleontologistA scientistwhostudiesfossilsRelativeAgeThe age ofrocks ascompared toother rocks UnconformityBreak in timedue to erosionin an otherwisecontinuous rockrecord Law ofSuperpositionLaw stating thatlower rocklayers are olderand upper rocklayers areyounger SedimentaryRockThe onlytype of rickwhere fossilsare foundPeriodThe secondshortest unitof geologicaltime (behindepochs) PreservedRemainsWhen parts ofthe originalorganismremain, likeamber, ice, tar,mummies, etc.CastFossilSolid copy ofthe shape ofan organism IgneousRockvolcanicrock wherefossils arenot foundMoldFossilFossilizedimprint insediment inthe shape ofan organism GeologicTimeScaleA record ofthe geologicevents andlife forms inEarth’s history CarbonFilmThin film of carbonthat forms as gasesand liquids areforced out of thebody due topressure and heat GorgonopsidThe apexpredator of thepermian period;Had mammal-like teethAbsoluteAgehe exact age therock given asthe number ofyears since therock formedEonsLongeststretch ofgeologictimeEraThe secondlargestdivision ofgeologicaltime ThrinaxodonOne of the firstmammals toexist, hadseveral reptiliancharacteristicsIndexFossila fossil that isuseful for datingand correlatingthe strata inwhich it is found OverturnedFoldsThe onlycase whereyounger rocklayers canend upExtinctRefers to agroup of relatedorganisms thathas died out andhas no livingmembers TraceFossilA fossil thatshows theactivities ofancientorganisms ExtrusionAn igneous rocklayer that formswhen lava flowsonto Earth’ssurface andhardens FossilRemains orimpression of aprehistoricorganismpreserved inrockstromatolitesFossilizedsingle-celledorganisms thatstill remain theoldest fossils onEarthPetrifiedFossilWhensedimentreplaces allor part of anorganism IntrusionAn igneous rocklayer that formswhen magmahardens beneathEarth’s surface FaultA breakin Earth'scrustFossilRecordAll the fossilscollected andstudied bypaleontologistsEvolutionThe changein livingthings overmanygenerations PaleontologistA scientistwhostudiesfossilsRelativeAgeThe age ofrocks ascompared toother rocks UnconformityBreak in timedue to erosionin an otherwisecontinuous rockrecord Law ofSuperpositionLaw stating thatlower rocklayers are olderand upper rocklayers areyounger SedimentaryRockThe onlytype of rickwhere fossilsare foundPeriodThe secondshortest unitof geologicaltime (behindepochs) PreservedRemainsWhen parts ofthe originalorganismremain, likeamber, ice, tar,mummies, etc.CastFossilSolid copy ofthe shape ofan organism IgneousRockvolcanicrock wherefossils arenot foundMoldFossilFossilizedimprint insediment inthe shape ofan organism GeologicTimeScaleA record ofthe geologicevents andlife forms inEarth’s history CarbonFilmThin film of carbonthat forms as gasesand liquids areforced out of thebody due topressure and heat GorgonopsidThe apexpredator of thepermian period;Had mammal-like teethAbsoluteAgehe exact age therock given asthe number ofyears since therock formedEonsLongeststretch ofgeologictimeEraThe secondlargestdivision ofgeologicaltime ThrinaxodonOne of the firstmammals toexist, hadseveral reptiliancharacteristicsIndexFossila fossil that isuseful for datingand correlatingthe strata inwhich it is found OverturnedFoldsThe onlycase whereyounger rocklayers canend upExtinctRefers to agroup of relatedorganisms thathas died out andhas no livingmembers TraceFossilA fossil thatshows theactivities ofancientorganisms ExtrusionAn igneous rocklayer that formswhen lava flowsonto Earth’ssurface andhardens FossilRemains orimpression of aprehistoricorganismpreserved inrockstromatolitesFossilizedsingle-celledorganisms thatstill remain theoldest fossils onEarthPetrifiedFossilWhensedimentreplaces allor part of anorganism IntrusionAn igneous rocklayer that formswhen magmahardens beneathEarth’s surface FaultA breakin Earth'scrustFossilRecordAll the fossilscollected andstudied bypaleontologistsEvolutionThe changein livingthings overmanygenerations 

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