How do we know the Earth is round?

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Age: 7-12
Level: 3
Language: English (en)
ID: 628072
12/01/2021
Country code: US
Country: United States
School subject: Science (1061951)
Main content: The Earth (2011146)

How do we know the Earth is round?

Other contents: Mystery Science

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How do we know the Earth is round?

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