(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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Frequency
Echo
Hertz
Diaphragm
Units of frequency
Auditory range
Vibrations
Longitudinal
Superposition
Cochlea
Sonar uses _________ waves that are reflected under water
