character: Mrs. Sarah Johnson
topic: Thermal Conductivity and Insulation in Everyday Materials
grade: 9
subject: Chemistry
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character: Mr. David Smith
topic: Properties of Metals and Insulators
grade: 9
subject: Chemistry
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character: Ms. Emily Roberts
topic: Applications of Thermal Insulation in Building Materials
grade: 9
subject: Chemistry
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character: Dr. John Lee
topic: Heat Transfer Mechanisms in Different Materials
grade: 9
subject: Chemistry
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