character: Professor Wave
topic: Introduction to Waves and Their Properties
grade: 9
subject: Physics
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character: Professor Light
topic: Understanding Light Waves
grade: 9
subject: Physics
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character: Professor Sound
topic: Exploring Sound Waves
grade: 9
subject: Physics
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character: Dr. Vibration
topic: The Nature of Vibrational Waves
grade: 9
subject: Physics
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