character: Dr. Chemist
topic: Chemical Reactions and Energy Changes
grade: 9
subject: Science
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character: Professor Molecule
topic: Endothermic and Exothermic Reactions
grade: 9
subject: Science
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character: Energy Expert
topic: Law of Conservation of Energy in Reactions
grade: 9
subject: Science
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character: Reaction Ranger
topic: Types of Chemical Reactions
grade: 9
subject: Science
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