character: Change Agent
topic: Identifying Physical vs. Chemical Changes
grade: 9
subject: Chemistry
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character: Chemistry Explorer
topic: Understanding the States of Matter
grade: 9
subject: Chemistry
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character: Science Detective
topic: Reactions and Their Indicators
grade: 9
subject: Chemistry
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character: Lab Technician
topic: Observing Chemical and Physical Properties
grade: 9
subject: Chemistry
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