character: Vitamin D Dave
topic: Vitamin D and Calcium Absorption
grade: 9
subject: Science
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character: Calcium Carl
topic: Role of Calcium in Bone Health
grade: 9
subject: Science
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character: Nutrient Nancy
topic: Essential Vitamins and Their Functions
grade: 9
subject: Science
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character: Health Coach Hannah
topic: The Importance of Vitamins for Teens
grade: 9
subject: Science
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