character: Captain Frequency
topic: How Sound Waves Travel Through Different Mediums
grade: 9
subject: Physics
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character: Echo Explorer
topic: Understanding Reflection and Refraction of Sound
grade: 9
subject: Physics
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character: Vibration Voyager
topic: The Role of Particles in Sound Propagation
grade: 9
subject: Physics
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character: Medium Master
topic: Comparison of Sound Speed in Solids, Liquids, and Gases
grade: 9
subject: Physics
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