تماشای ویدئو Earths Rotation از آی-ویدئو

So, have you ever wondered why we have seasons? Or maybe where the sun goes when it's night time? *Hint: It doesn't actually go anywhere* In this episode of Crash Course Kids, Sabrina talks about the Earth's rotation and revolution and how these things contribute to night and day and how Earth's tilt gives us seasons. This first series is based on 5th grade science. We're super excited and hope you enjoy Crash Course Kids!
20 مرداد 1396
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