4.6 b.y.ato 544m.y.aCambrianExplosion544 m.y.aBeforeLifeProduct ofPhotosynthesisSedimentaryRock FirstFormationPermianExtinction65 m.y.atopresentPaleozoicPeriodMesozoic544 m.y.ato 251m.y.aEraOutgassingFREE!Eon2.4m.y.ahumansDensityZonesOldestTrilobites65 m.y.aextinctionAge ofoldestrocks2.8billion topresentPrecambrianCausesiron torustPhanerozoic4.6b.y.aOldestRocks??? b.y.aHeatstheEarthCenozoic4.6 b.y.ato 544m.y.aCambrianExplosion544 m.y.aBeforeLifeProduct ofPhotosynthesisSedimentaryRock FirstFormationPermianExtinction65 m.y.atopresentPaleozoicPeriodMesozoic544 m.y.ato 251m.y.aEraOutgassingFREE!Eon2.4m.y.ahumansDensityZonesOldestTrilobites65 m.y.aextinctionAge ofoldestrocks2.8billion topresentPrecambrianCausesiron torustPhanerozoic4.6b.y.aOldestRocks??? b.y.aHeatstheEarthCenozoic

Geologic Time - 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. 4.6 b.y.a to 544 m.y.a
  2. Cambrian Explosion 544 m.y.a
  3. Before Life
  4. Product of Photosynthesis
  5. Sedimentary Rock First Formation
  6. Permian Extinction
  7. 65 m.y.a to present
  8. Paleozoic
  9. Period
  10. Mesozoic
  11. 544 m.y.a to 251 m.y.a
  12. Era
  13. Outgassing
  14. FREE!
  15. Eon
  16. 2.4 m.y.a humans
  17. Density Zones
  18. Oldest Trilobites
  19. 65 m.y.a extinction
  20. Age of oldest rocks
  21. 2.8 billion to present
  22. Precambrian
  23. Causes iron to rust
  24. Phanerozoic
  25. 4.6 b.y.a
  26. Oldest Rocks ??? b.y.a
  27. Heats the Earth
  28. Cenozoic