character: Cathy Catalyst
topic: Role of Catalysts in Reactions
grade: 9
subject: Science
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character: Enzo Enzyme
topic: Biological Catalysts in Living Organisms
grade: 9
subject: Science
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character: Professor Reaction
topic: Chemical Reactions and Energy Changes
grade: 9
subject: Science
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character: Rita Reaction
topic: Factors Affecting Reaction Rates
grade: 9
subject: Science
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