character: Ms. Linda Carter
topic: The Physics of Sound and Light
grade: 9
subject: Physics
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character: Mr. John Smith
topic: Waves and Optics
grade: 9
subject: Physics
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character: Dr. Emily White
topic: Sound Waves and Their Properties
grade: 9
subject: Physics
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character: Professor Alice Brown
topic: The Behavior of Light and Color
grade: 9
subject: Physics
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