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To prove that sound is a result of vibration, tap a tuning fork on the edge of a wooden table near your ears. Then, touch the tuning fork with your finger after tapping it. You will hear the sound and feel the vibration as it branches out. This experiment demonstrates the relationship between sound and vibration, as the tuning fork creates sound waves through its vibrations when struck against a surface. Sound is essentially a result of these vibrations traveling through the air and being detected by our ears.