For a given medium such as air, sound has a slower speed at lower temperatures.  If Mary is blowing an air horn underwater and she raises the temperature of the water, what will happen to the speed of the sound waves generated by the air horn increase or decrease?
increase
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Water also gets colder as you go deeper.  As a diver goes deeper into the water, the water gets warmer or colder.?
colder.
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The voice becomes deeper as the larynx in the throat grows larger.  A person that has a small larynx will have what type of voice High or low?
High
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For a given medium, sound has a slower speed at lower temperatures.  When animals are moving in the cold they are faster or slower?
slower
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