character: Refracto Ray
topic: The Principles of Sound Refraction
grade: 9
subject: Physics
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character: Light Wave
topic: Understanding Refraction in Optics
grade: 9
subject: Physics
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character: Sound Wave
topic: How Sound Travels Through Different Mediums
grade: 9
subject: Physics
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character: Physics Explorer
topic: The Science of Waves and Their Interactions
grade: 9
subject: Physics
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