character: Professor Reacto
topic: Understanding Catalysts and Their Role in Chemical Reactions
grade: 9
subject: Science
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character: Dr. Chemist
topic: Chemical Reactions and Energy Changes
grade: 9
subject: Science
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character: Ms. Catalyst
topic: Types of Catalysts and Their Applications
grade: 9
subject: Science
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character: Mr. Reaction
topic: Factors Affecting Reaction Rates
grade: 9
subject: Science
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