character: Coach Davis
topic: Physical Activity and Heart Health
grade: 9
subject: Science
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character: Dr. Smith
topic: Exercise Benefits on Cardiovascular System
grade: 9
subject: Science
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character: Ms. Lee
topic: Nutrition and Heart Health
grade: 9
subject: Science
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character: Mr. Johnson
topic: The Impact of Sedentary Lifestyle on Heart Health
grade: 9
subject: Science
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