(Print) Use this randomly generated list as your call list when playing the game. 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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G-Lithogenous Sediment
I-Density
I-Active Margins
B-Continental Shelf
N-Granite
O-Basalt
O-Continental Slope
G-Big Bang
O-Carbon Dating
B-Continental Drift
B-Southern Hemisphere
G-Mid-Ocean Ridges
B-One plate sinks beneath another
N-Hydrothermal Vent
B-71%
B-Shelf Break
O-Crust
G-Magnetic anomalies, sea-floor spreading, and mid-ocean ridges