This bingo card has a free space and 24 words: Caves, Hills, Sea, Ice, Sand, Limestone, Boulders, Stalactite, Earth, Stalagmite, Pebbles, Mountains, Volcanoes, Carbon Dioxide, Glaciers, Carbonic Acid, Rainwater, Twilight Zone, Caverns, Calcite, Lava, Bacteria, Rocks and Dwellers.
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Learn how to conduct a bingo game.
With players vying for a you'll have to call about __ items before someone wins. There's a __% chance that a lucky player would win after calling __ items.
Tip: If you want your game to last longer (on average), add more unique words/images to it.