Sound
What is a reflected sound that is heard again?
Echo
Which part of the ear includes the hammer, anvil, and stirrup?
The middle ear
Speech is produced by the vibrations of what?
Vocal Cord
Who was the inventor of the phonograph?
Thomas Edison
What is the bossy bird that plants oak trees?
Blue jay
Sound is a form of what?
Energy
What are the only animals that have visible outer ears?
Mammals
Materials with soft, uneven surfaces tend to what sound waves?
absorb
Who was the inventor of the telephone?
Alexander Graham Bell
What is bird that walks headfirst down trees?
Nuthatch
Sound waves travel slower than what?
Light
What carries the message of sound to the brain?
The auditory nerve
Bat's "see" with their what?
Who was the man that proved that sound waves travel only through matter?
Robert Boyle
What is the singing bird that mimics other birds?
mockingbird
Sound waves travel fastest through what?
Solid
What is the snail-shaped part of the ear that contains the actual organ of hearing?
Cochlea
What two animals hear the highest frequency sounds?
Bats and dolphins
What is sonar used for?
To see the depth (deepness) of water
What is the spangled bird brought from Europe that are now in every part of the United States and Canada?
Starling
Sound waves can OR cannot travel through empty space?
Cannot
The highest OR lowest frequency that the human can hear is 20 times per second?
Lowest
Why are two ears are better than one?
You can hear the direction of the sound.
Because air has weight, it exerts what?
pressure
What bird who uses his extra-long tongue to probe holes for insects?
woodpecker