(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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solution cave
a ______ is formed by the dissolving of underground rocks by water
rock
the hardest material that composes the earth's crust is called
trogloxene
a _______ visits a cave regularly but must return to the surface for food
cave
any hollow space in the earth's crust that has formed naturally and is large enough for a person to enter
halite
which sedimentary rock is formed by chemical sediments and is used for salting roads and flavoring food
caves
speleology is the study of _______
granite
what is the most common igneous rock and can be found everywhere on the land
metamorphic
rock that has been changed by extreme heat or pressure into a new kind of rock is known as _________ rock
igneous
when molten rock solidifies, it forms _______ rock
fossil
any trace of a plant or animal left in a rock
sedimentary
sand and mineral fragments that have been pressed together form ________________ rock
gemstones
small deposits of igneous and metamorphic crystals
iron
the most commonly used practical metal; used for thousands of years to make tools
extrusive
what type of igneous rock is formed at the earth's surface, cools rapidly, and has a fine-grained appearance
magnetic field
the area surrounding a magnet in which the force of the magnet affects other objects is called
reef limestone
which sedimentary rock is the only stone formed by living animals
sedimentary
over 75% of the earth's surface is covered with ______ rock
slate
which metamorphic rock began as shale, is very hard, and has leaflike layers
foliated
what type of metamorphic rock is made up of layers like leaves of a book
magnetosphere
the magnetic field produced by the earth is called
copper
a metal that is a good conductor of electricity; two of its alloys are brass and bronze
marble
which metamorphic rock is perhaps one of the most beautiful and most widely used, and began as limestone
precious stones
the rarest, most durable and beautiful gems
ore
any rock containing a metal together with impurities
limestone
caves usually form in _____
diamond
the hardest known mineral; found in "pipes"
troglophile
a _______ is designed to live either in a cave or above a cave
poles
the ends of a magnet are called
sandstone
which sedimentary rock is used to make glass
