2.5 Why do we need to sleep?

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Age: 8-10
Level: 4º EP
Language: English (en)
ID: 499648
13/11/2020
Country code: ES
Country: Spain
School subject: Natural Science (1061921)
Main content: Why do we need to sleep? (1197956)

Why do we need to sleep?

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2.5  Why do we need to sleep?

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