character: Pitch Percy
topic: The Relationship Between Frequency and Pitch
grade: 6
subject: Science
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character: Sound Sally
topic: How Sound Waves Work
grade: 6
subject: Science
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character: Frequency Freddy
topic: Understanding Sound Frequency
grade: 6
subject: Science
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character: Vibration Victor
topic: The Science of Sound and Vibration
grade: 6
subject: Science
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