Sound vibrations can travel through different materials

Sounds as vibrations can travel through many different materials.

  • Sound can travel through solids, like metal, stone and wood.

  • Sound can travel through liquids, like water.

  • Sound can travel through gases, like air.

Sound vibrations travel better through some materials than others. For example, sound vibrations travel very well along metal pipes.

Sound cannot travel through a completely empty space (a vacuum), which has nothing, not even air, in it. If there is a vacuum between a sound-making object and our ears, we won't be able to hear the sound.

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