character: Archaeologist
topic: Excavation Techniques at Machu Picchu
grade: 4
subject: Social Studies
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character: History Explorer
topic: Discovering Ancient Civilizations
grade: 4
subject: Social Studies
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character: Inca Builder
topic: Construction Methods of Machu Picchu
grade: 4
subject: Social Studies
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character: Environmental Scientist
topic: Preserving Archaeological Sites
grade: 4
subject: Social Studies
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