Science C26: How Sound Is Made


Award-winning video and lesson investigations for young children on the topic of sound

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Product Description

Video and lesson investigations on the topic of sound. Key concepts include:

  • Human sounds are made by using the vocal chords.
  • Something must move for sound to be made.
  • Sound is made by something vibrating.
  • For example, when a bell rings, the sound vibrations vibrate the air, which, when it reaches our ears, make the tiny bones in our middle ear vibrate at the same frequency.
  • This vibrating message is picked up by the auditory nerve connected to the inner ear, then transmitted to the brain where it is interpreted by the auditory centers.
  • Altering the vibration changes the sound (it may make it louder or softer, or it may make a change intone or pitch).
  • Sound travels away from the source of the sound in all directions and can travel through a gas, liquid or solid.
  • The further the sound vibrations get from their source, the weaker they become


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