character: Mr. John Smith
topic: Properties of Materials Used in Building Construction
grade: 9
subject: Chemistry
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character: Materials Scientist
topic: Types of Building Materials and Their Chemical Properties
grade: 9
subject: Chemistry
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character: Architectural Engineer
topic: Impact of Material Properties on Building Design
grade: 9
subject: Chemistry
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character: Civil Engineer
topic: Durability and Sustainability of Construction Materials
grade: 9
subject: Chemistry
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