character: Wavy Willy
topic: Refraction and Diffraction of Waves
grade: 9
subject: Physics
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character: Wavy Willy
topic: Understanding Wave Properties
grade: 9
subject: Physics
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character: Wavy Willy
topic: Applications of Refraction in Optics
grade: 9
subject: Physics
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character: Wavy Willy
topic: Wave Behavior: Reflection, Refraction, and Diffraction
grade: 9
subject: Physics
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