character: Ms. Johnson
topic: Innovative Uses of Alloys in Modern Architecture
grade: 12
subject: Chemistry
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character: Mr. Smith
topic: Sustainability in Building Materials
grade: 12
subject: Chemistry
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character: Dr. Lee
topic: The Chemistry of Steel in Skyscrapers
grade: 12
subject: Chemistry
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character: Ms. Wang
topic: Corrosion Resistance in Modern Engineering
grade: 12
subject: Chemistry
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