Sound Facts

Sounds are nothing more than tiny shaking movements of the air. Check out and share some fun sound facts for kids!

• Sounds are made when a material vibrates.

• Fast vibrations make a high sound, and slow vibrations make a low sound.

• Sound can travel through materials.
  

  The accepted units for sound pressure are metric, Newton per one square meter (N/m2).

• Whales in the ocean “sing” to each other. The sound of their song can travel a distance of 800km.

• The returning sound is called echo.

• Sound with frequencies of less than 20 Hz is known as infrasound.

• One-third of the total power of a 75-piece orchestra comes from the bass drum.

• Animals use sound as a medium to detect danger and warning.

• Flies are deaf!

• It’s not possible for sound to travel through a vacuum (an area empty of matter).

• A baby’s cry is louder than a car horn.

• Sound waves can bend around corners and obstacles.

• Sound waves are invisible because the human eye can’t see pressure waves.

• If you drop rice carefully into a bowl it will make a sound like rain or hail.