(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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mixture of weathered rock, water, air & humus
layer of rock beneath soil
determines the type of soil that forms
plant roots
wind picking up and depositing sand in the desert creates a
decaying organic material from plants and animals
water, wind, and ice dropping off sediment
acid rain dissolves minerals in statues
wind and water weather a rock by friction
breakdown of rock by water, wind, ice, gravity, and living organisms
Horizon R
breakdown and movement of sediment
ice expands when freezing and breaks rock
water, wind, ice & gravity
iron in the rock reacts with water and oxygen to weaken the rock
rockslide breaks rock down on side of mountain
weather SLOW
Horizon O
Horizon B
Horizon C
alteration and breakdown of rock by chemical reaction
Horizon A
water dissolves minerals in limestone and creates a cave
