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grade:
3
subject:
Science
topic:
The Circulatory and Respiratory Connection
character:
Heartbeat Harry
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grade:
3
subject:
Science
topic:
How Oxygen Travels Through the Body
character:
Oxygen Ollie
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grade:
3
subject:
Science
topic:
The Respiratory System and Breathing
character:
Lung Lola
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grade:
3
subject:
Science
topic:
The Circulatory System and Blood Flow
character:
Captain Vein
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