Final sense: the hearing

Sense number five.  Final Sense!

Here's the message about it:

Everything travels in waves.  Waves can bounce off of things and that's how echoes are made.  But if the sound-waves don't go into your ear then you don't hear them.  Sound waves travel in pitch.  High sounds are like bells and dog whistles.  Medium pitch sounds are the sounds of your voice.  Low pitch sounds are sounds like when you bang a drum, da dum dum ding!  But the only one of those that are low pitched is the second "dum."

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