character: Sally
topic: Snell's Law and Angles of Refraction
grade: 9
subject: Physics
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character: Tom
topic: Understanding Refraction in Different Mediums
grade: 9
subject: Physics
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character: Alex
topic: Practical Applications of Snell's Law
grade: 9
subject: Physics
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character: Jamie
topic: Deriving Snell's Law From Wave Principles
grade: 9
subject: Physics
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