character: Professor Alan Johnson
topic: Electrolytes and Their Importance in Muscle Function
grade: 9
subject: Chemistry
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character: Dr. Emily Carter
topic: Role of Ions in Body Functions
grade: 9
subject: Chemistry
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character: Coach Mike Anders
topic: Hydration and Athletic Performance
grade: 9
subject: Chemistry
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character: Nutritionist Sarah Lee
topic: Dietary Sources of Electrolytes
grade: 9
subject: Chemistry
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