character: Periodic Paula
topic: Elements and Their Properties
grade: 9
subject: Science
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character: Elemental Eddie
topic: Chemical Properties of Elements
grade: 9
subject: Science
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character: Atomic Annie
topic: Structure of Atoms and Periodicity
grade: 9
subject: Science
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character: Reactive Rachel
topic: Reactivity Series of Elements
grade: 9
subject: Science
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