Show:
Vocabulary
The Ear
The Human Sound System
Ways We Use Sound and Sound Safety
Pot-Pourri
100
A rapid back and forth motion.
What is Vibration?
100
This thin membrane inside the ear vibrates when sound waves reach it.
What is The Ear Drum?
100
This pushes air out of the lungs and into the bronchi.
What is The Diaphragm?
100
One way we rely on sound is for ________________. (Your teacher giving directions is an example of this).
What is Communication?
100
Bats and dolphins use this to find food.
What is Echolocation?
200
The sensation produced when the brain interprets signals received by the ear.
What is Sound?
200
This part of the ear helps to collect sound waves and direct them into the ear.
What is The Outer Ear or Pinnea?
200
These vibrate when air passes over them.
What are The Vocal Cords?
200
A fire alarm is an example of using sound as a __________.
What is A Danger Signal?
200
All sound waves must travel through this.
What is A Medium?
300
The loudness or softness of a sound, depending upon the amount of energy used to produced the sound.
What is Volume?
300
Three small vibrating bones in the middle ear are:
What is The Hammer, Anvil and Stirrup?
300
This carries air from the bronchi in the lungs to the vocal cords.
What is The Trachea?
300
Listening to music is an example of how we use sound for _________________.
What is Entertainment?
300
Words that mimic certain sounds are called.....
What is Onomatopoeia?
400
The highness or lowness of a sound, depending upon the frequency (speed) of the vibration.
What is Pitch?
400
Signals travel from the ear to the brain through this.
What is The Auditory Nerve?
400
We use these to form and shape (articulate) sounds.
What are The Mouth, Tongue and Teeth?
400
Give 2 ways that we can cause temporary or permanent damage to our ears and our ability to hear.
What is 1. Exposure to a sudden, loud noise at close range, 2. Exposure to a loud noise for a prolonged period of time, 3. Placing a foreign body into our ear?
400
Sound travels fastest through this medium.
What is A Solid?
500
The quality of a sound.
What is Tone?
500
This snail-shaped, fluid-filled chamber changes vibrations from sound waves into signals which can be interpreted by the brain.
What is The Cochlea?
500
This surrounds and protects the vocal cords.
What is The Larynx?
500
List 2 ways that we can protect our hearing.
What is 1.Wear earplugs or headphones when exposed to loud noise, 2.Turn down the volume, 3. Never put anything into your ear that doesn't belong there?
500
One of these can be used to amplify (make louder) a sound.
What is a microphone, megaphone or amplifier.