character: Waves Willy
topic: Properties of Sound Waves
grade: 6
subject: Science
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character: Sonic Sally
topic: Understanding Sound Frequencies
grade: 6
subject: Science
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character: Echo Eddie
topic: How Sound Travels Through Different Mediums
grade: 6
subject: Science
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character: Vibrant Vicky
topic: The Effect of Pitch and Volume on Sound Waves
grade: 6
subject: Science
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