character: Mr. Johnson
topic: Understanding Activation Energy in Chemical Reactions
grade: 9
subject: Science
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character: Ms. Smith
topic: Factors Affecting Activation Energy
grade: 9
subject: Science
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character: Dr. Lee
topic: Real-world Applications of Activation Energy
grade: 9
subject: Science
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character: Mrs. Clark
topic: Visualizing Activation Energy with Energy Profile Diagrams
grade: 9
subject: Science
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