character: Professor Lightman
topic: Introduction to Light Waves and Their Properties
grade: 6
subject: Science
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character: Wave Expert
topic: Types of Waves in Nature
grade: 6
subject: Science
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character: Optics Specialist
topic: Reflection and Refraction of Light
grade: 6
subject: Science
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character: Physics Teacher
topic: Understanding the Electromagnetic Spectrum
grade: 6
subject: Science
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