(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-Believed in the sun-centered universe
O-What are reflecting telescopes?
G-Neap tide
O-Planetesimals
G-What is the Milky
Way
B-Discovered three laws of planetarymotion
G-Revolution
G-What is gravitational attraction
O-The time it takes Earth to orbit once around the sun