character: Healthy Harold
topic: The importance of keeping your heart healthy
grade: 3
subject: Science
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character: Healthy Harold
topic: How to maintain a balanced diet for heart health
grade: 3
subject: Science
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character: Healthy Harold
topic: Exercise and its effects on heart health
grade: 3
subject: Science
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character: Healthy Harold
topic: Understanding the circulatory system
grade: 3
subject: Science
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