character: Astro Annie
topic: Understanding the Periodic Table
grade: 6
subject: Science
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character: Chemistry Carl
topic: Elements and Compounds
grade: 6
subject: Science
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character: Periodic Pete
topic: Properties of Metals, Nonmetals, and Metalloids
grade: 6
subject: Science
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character: Atomic Alice
topic: Understanding Atomic Structure
grade: 6
subject: Science
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