(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-You observe the planet's effect on the light of its sun
N-There are ___ known exoplanets
G-___ terrestrial planets are in the habitable zone