character: Chemical Charlie
topic: Introduction to Avogadro's Theory
grade: 9
subject: Science
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character: Molecule Mike
topic: Understanding Mole Ratios
grade: 9
subject: Science
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character: Atom Alex
topic: Basic Atomic Structure
grade: 9
subject: Science
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character: Periodic Paula
topic: Elements and Their Properties
grade: 9
subject: Science
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