(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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youngest layer
fault
oldest layer
fossils
record of earth's history
geologic time
sediment
superposition
lateral continuity
earth
strata
geologic event
key bed
geologist
unconformity
cross-cutting
absolute age
index fossils
relative age
large number of species disapear from a time period
extinctions