eli5 how can I still hear if I close my ears very tightly?

Question

When I block my ears tightly, I can still hear some sounds and it isn’t completely attenuated. Is that still because of air conduction or is it because of bone conduction?

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Answer 1

well it’s not quite possible to completely cover your ears with your hands, as sound can still travel through your hand to your ears, and earplugs still allow vibrations which is still sound as sound is vibrations. “Sound waves can travel through anything whether it is air, wood, metal, bone, horn or water.”