Loudness of sound

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2 years 9 months
Edad: 5-7
Level: 1
Idioma: English (en)
ID: 1774670
06/01/2022
Country code: TH
Country: Thailand
Asignatura: Science (1061951)
Tema principal: Sound (2011479)

Sound becomes quieter as it travels away from source.

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Loudness of sound

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