character: Dr. Emily Johnson
topic: Factors Affecting the Rate of Chemical Reactions
grade: 9
subject: Science
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character: Professor Andrew Smith
topic: Catalysts and Their Role in Chemical Reactions
grade: 9
subject: Science
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character: Ms. Rachel Lee
topic: Temperature's Impact on Chemical Reaction Rates
grade: 9
subject: Science
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character: Mr. John Davis
topic: Concentration and Reaction Speed
grade: 9
subject: Science
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