EonThe longestsubdivisionof theGeologicTime ScaleEpochThe shortestsubdivisionof theGeologicTime ScaleAnthropoceneThe proposedgeological epochdating from thecommencement ofsignificant humanimpact an Earth'sgeology andecosystemsLargeasteroid/meteorimpactWhat isbelieved tohave causedthe extinction ofthe dinosaurs?Sediments aredeposited inhorizontal layersparallel to thesurface on whichthey weredepositedPrinciple ofOriginalHorizontalityHalf-lifeThe time ittakes for 1/2of parentisotopes todecayRNA-likemoleculesEarly moleculesthat couldreplicate andstore geneticinformation tomake proteinsCarboniferousGeologic periodcharacterized bydense, swampyforests, whichgave rise to largedeposits of peatPre-CambrianThis timeperiodencompassesover 80% ofEarth's historyCyanobacteria/blue-green algaeMicro-organismthat changedEarth'satmosphere byproducingoxygenEraMarked by majorchanges in the fossilrecord it's the next tolongest subdivision ofthe Geologic TimeScalePermianGeologic periodcharacterized bythe massextinction ofapprox. 90% of allanimal speciesStromatolitesThese earliest fossilswere produced bylayered sedimentaryformations created bymicroorganismsBirdsThese animalsare thought tobe thedescendants ofthe SaurischiandinosaursCharlesDarwinWhichscientistcreated themodern ideaof evolution?EvolutionThe gradualchange inliving thingsover a longperiod of timeTriassicThe GeologicPeriod inwhichdinosaursevolvedMesozoicGeologic Era inwhich thedinosaursreigned "TheAge of theDinosaurs"RadioactivedecayThe process ofan isotopebreaking downinto anotherisotopeIn undisturbedsedimentary rock,the oldest rocklayers are at thebottom and theyoungest at the topPrinciple ofSuperpositionA rock featurethat cuts acrossanother featuremust be youngerthan the rock itcutsThe Principleof Cross-CuttingRelationshipsNaturalSelectionWhen Naturechooses whichorganismssurvive basedon theiradaptationsMiller-UreyExperiment thatsimulatedEarth's earlyconditions thatproducedamino acidsCenozoicTheGeologic Erain which weliveRadiocarbonDatingA commonmethod ofdating anythingthat was oncealiveCretaceousIn whichGeologicperiod did thedinosaurs goextinct?CambrianGeologic Periodcharacterized byan explosion inthe diversity oflifeEonThe longestsubdivisionof theGeologicTime ScaleEpochThe shortestsubdivisionof theGeologicTime ScaleAnthropoceneThe proposedgeological epochdating from thecommencement ofsignificant humanimpact an Earth'sgeology andecosystemsLargeasteroid/meteorimpactWhat isbelieved tohave causedthe extinction ofthe dinosaurs?Sediments aredeposited inhorizontal layersparallel to thesurface on whichthey weredepositedPrinciple ofOriginalHorizontalityHalf-lifeThe time ittakes for 1/2of parentisotopes todecayRNA-likemoleculesEarly moleculesthat couldreplicate andstore geneticinformation tomake proteinsCarboniferousGeologic periodcharacterized bydense, swampyforests, whichgave rise to largedeposits of peatPre-CambrianThis timeperiodencompassesover 80% ofEarth's historyCyanobacteria/blue-green algaeMicro-organismthat changedEarth'satmosphere byproducingoxygenEraMarked by majorchanges in the fossilrecord it's the next tolongest subdivision ofthe Geologic TimeScalePermianGeologic periodcharacterized bythe massextinction ofapprox. 90% of allanimal speciesStromatolitesThese earliest fossilswere produced bylayered sedimentaryformations created bymicroorganismsBirdsThese animalsare thought tobe thedescendants ofthe SaurischiandinosaursCharlesDarwinWhichscientistcreated themodern ideaof evolution?EvolutionThe gradualchange inliving thingsover a longperiod of timeTriassicThe GeologicPeriod inwhichdinosaursevolvedMesozoicGeologic Era inwhich thedinosaursreigned "TheAge of theDinosaurs"RadioactivedecayThe process ofan isotopebreaking downinto anotherisotopeIn undisturbedsedimentary rock,the oldest rocklayers are at thebottom and theyoungest at the topPrinciple ofSuperpositionA rock featurethat cuts acrossanother featuremust be youngerthan the rock itcutsThe Principleof Cross-CuttingRelationshipsNaturalSelectionWhen Naturechooses whichorganismssurvive basedon theiradaptationsMiller-UreyExperiment thatsimulatedEarth's earlyconditions thatproducedamino acidsCenozoicTheGeologic Erain which weliveRadiocarbonDatingA commonmethod ofdating anythingthat was oncealiveCretaceousIn whichGeologicperiod did thedinosaurs goextinct?CambrianGeologic Periodcharacterized byan explosion inthe diversity oflife

Geologic Time & Early Life - 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. The longest subdivision of the Geologic Time Scale
    Eon
  2. The shortest subdivision of the Geologic Time Scale
    Epoch
  3. The proposed geological epoch dating from the commencement of significant human impact an Earth's geology and ecosystems
    Anthropocene
  4. What is believed to have caused the extinction of the dinosaurs?
    Large asteroid/meteor impact
  5. Principle of Original Horizontality
    Sediments are deposited in horizontal layers parallel to the surface on which they were deposited
  6. The time it takes for 1/2 of parent isotopes to decay
    Half-life
  7. Early molecules that could replicate and store genetic information to make proteins
    RNA-like molecules
  8. Geologic period characterized by dense, swampy forests, which gave rise to large deposits of peat
    Carboniferous
  9. This time period encompasses over 80% of Earth's history
    Pre-Cambrian
  10. Micro-organism that changed Earth's atmosphere by producing oxygen
    Cyanobacteria/blue-green algae
  11. Marked by major changes in the fossil record it's the next to longest subdivision of the Geologic Time Scale
    Era
  12. Geologic period characterized by the mass extinction of approx. 90% of all animal species
    Permian
  13. These earliest fossils were produced by layered sedimentary formations created by microorganisms
    Stromatolites
  14. These animals are thought to be the descendants of the Saurischian dinosaurs
    Birds
  15. Which scientist created the modern idea of evolution?
    Charles Darwin
  16. The gradual change in living things over a long period of time
    Evolution
  17. The Geologic Period in which dinosaurs evolved
    Triassic
  18. Geologic Era in which the dinosaurs reigned "The Age of the Dinosaurs"
    Mesozoic
  19. The process of an isotope breaking down into another isotope
    Radioactive decay
  20. Principle of Superposition
    In undisturbed sedimentary rock, the oldest rock layers are at the bottom and the youngest at the top
  21. The Principle of Cross-Cutting Relationships
    A rock feature that cuts across another feature must be younger than the rock it cuts
  22. When Nature chooses which organisms survive based on their adaptations
    Natural Selection
  23. Experiment that simulated Earth's early conditions that produced amino acids
    Miller-Urey
  24. The Geologic Era in which we live
    Cenozoic
  25. A common method of dating anything that was once alive
    Radiocarbon Dating
  26. In which Geologic period did the dinosaurs go extinct?
    Cretaceous
  27. Geologic Period characterized by an explosion in the diversity of life
    Cambrian