character: Tails
topic: The Science of Sound and Waves
grade: 3
subject: Music
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character: Sonic
topic: Introduction to Sound Frequencies
grade: 3
subject: Music
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character: Knuckles
topic: Waves in Nature and Their Sounds
grade: 3
subject: Music
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character: Amy
topic: Making Music with Sound Waves
grade: 3
subject: Music
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