character: Soundwave Sam
topic: The Relationship Between Echoes and Sound Properties
grade: 9
subject: Physics
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character: Echo Explorer
topic: Understanding the Speed of Sound in Different Mediums
grade: 9
subject: Physics
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character: Frequency Finder
topic: How Frequency Affects Sound Quality and Echo Characteristics
grade: 9
subject: Physics
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character: Reverberation Ray
topic: The Impact of Environment on Echo Formation
grade: 9
subject: Physics
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