character: Chemistry Teacher
topic: Catalysts and Activation Energy
grade: 9
subject: Science
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character: Lab Assistant
topic: Effect of Catalysts on Reaction Rates
grade: 9
subject: Science
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character: Science Tutor
topic: Understanding Activation Energy
grade: 9
subject: Science
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character: Research Scientist
topic: The Mechanism of Catalysis
grade: 9
subject: Science
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