Article

Fun Sound Facts

  • Grades: PreK–K, 1–2, 3–5, 6–8

• The hammer, anvil, and stirrup are the three smallest bones in our bodies.

Together they are about the size of a pea!

 

• Our ears pick up sound while we sleep, but our brain does not “hear” it!

 

• Shrek's ear-wax candle couldn't exist! The stuff in our ears is not really wax, but an oily substance called cerumen, which helps keep our ears clean.

 

• You should never stick anything smaller than your elbow into your ears, because it could damage your eardrum.

 

• Sound travels at 1130 feet/second. That's about one mile in 5 seconds!

 

• To determine how far away a thunderstorm is from you: Wait until you see lightning, then count 1-Mississippi, 2-Mississippi, etc. until you hear thunder, and divide by 5. The answer will tell you how many miles away the storm is from your location.

 

• In Africa, a tribe of people called Maabans live in such quiet that they can hear a whisper from across a baseball field (even when they are very old.)

 

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

 

• Aging causes gradual hearing loss, mostly in the high frequencies.

 

• An orchestra playing classical music at 120 dB will damage your hearing as quickly as heavy metal rock music playing at 120 dB.

 

• Speech reception is not seriously impaired until there is about 30 dB loss;

but by that time severe hearing damage may have occurred.

 

• Hypertension and psychological difficulties can be related to noise exposure.

 

• The incidence of hearing loss in classical musicians has been estimated at 4 to 43%, in rock musicians it is 13 to 30%.

 
—adapted from information provided by the Sight and Hearing Association (www.sightandhearing.org/news/healthissue/archive/hi_0802.asp

  • Subjects:
    Human Body, Sound
top