What is ECHO 🗣 Smile and Learn 🔊

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Have you ever heard of echo? Echo is an acoustic phenomenon that occurs when a sound wave hits an obstacle and is reflected back to us, causing us to hear th...

Youtube Kids, Smile and Learn, videos for kids, educational, children's education, preschool, sound, natural sound sources, sound waves, intensity, pitch, tone, timbre, echo, eco, decibel, science for kids
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