The AMAZING Ear!!
You are well on your way to becoming a CBA Sound Expert!
Today you have THREE TASKS
Task 1: Video & Questions
Task 2: Diagraming
Task 3: Sound Adventure
Fill in the answers on your worksheet. (Don't forget to put your student number and the date on it!!!)
If you complete all of this, there is an EXTRA task to complete at the end!
ENJOY!
Today you have THREE TASKS
Task 1: Video & Questions
Task 2: Diagraming
Task 3: Sound Adventure
Fill in the answers on your worksheet. (Don't forget to put your student number and the date on it!!!)
If you complete all of this, there is an EXTRA task to complete at the end!
ENJOY!
TASK 1:
Watch the video and it to help answer your questions:
Watch the video and it to help answer your questions:
http://studyjams.scholastic.com/studyjams/jams/science/human-body/hearing.htm
1. What are sound waves?
a) vibrations b) electricity c) heat d) temperature |
2. Where does the ear canal lead?
a) to the brain b) to the inner ear c) to the ear drum d) to the cochlea |
3. Which part of the ear is a membrane inside the ear that vibrates when sound hits it?
a) the ear canal b) the cochlea c) the hammer d) the ear drum |
4. What are the three tiny bones in the middle ear called?
a) hammer, anvil, wrench b) hammer, anvil, stirrup c) stirrup, harness, cochlea d) anvil, hammer, cochlea |
5. What does the cochlea do?
|
6. Which part of your ear helps you with balance?
a) the ear canal b) the bones of the middle ear c) the ear lobe d) the inner ear |
7. What happens when sound waves enter the brain's hearing centre?
a) The brain tells you what the sound is and where it is coming from
b) It vibrates against the bones in the middle ear.
c) It sends the sound back through the ear canal.
d) The brain uses the sound wave to help keep your balance.
a) The brain tells you what the sound is and where it is coming from
b) It vibrates against the bones in the middle ear.
c) It sends the sound back through the ear canal.
d) The brain uses the sound wave to help keep your balance.
TASK 2:
CAREFULLY read the descriptions below and label AND COLOUR diagram.
ANVIL- a tiny bone that passes vibrations from the hammer to the stirrup.
(colour orange) COCHLEA - a snail-shaped, fluid-filled inner ear structure; it is lined with tiny hairs that move when vibrated and cause a nerve impulse to form. (colour yellow) COCHLEAR/AUDITORY NERVE - this carries electrical signals from the inner ear (the cochlea) to the brain. (colour blue) EAR CANAL - the tube through which sound travels to the eardrum. (colour green) EARDRUM - a thin membrane that vibrates when sound waves reach it. (colour red) |
EUSTACHIAN TUBE - a tube that connects the middle ear to the back of the nose; it balances the pressure between the middle ear and the air outside. (colour purple)
HAMMER - a tiny bone that passes vibrations from the eardrum to the anvil. (colour black) PINNA - the visible part of the outer ear. It collects sound and directs it into the outer ear canal (colour pink) SEMICIRCULAR CANALS - three loops of fluid-filled tubes that are attached to the cochlea in the inner ear. They help us maintain our sense of balance. (colour gray) STIRRUP - a tiny, U-shaped bone that passes vibrations to the cochlea. This is the smallest bone in the human body (it is 0.25 to 0.33 cm long). (colour white) |
Task 3:
Click on the picture and get ready to participate in the sound ADVENTURE!!
EXTRA:
CLICK HERE to discover more about pitch, loudness, and changing sounds.
Take the quiz and record your score out of 10 on the bottom of your worksheet.
CLICK HERE to discover more about pitch, loudness, and changing sounds.
Take the quiz and record your score out of 10 on the bottom of your worksheet.