Difference between revisions of "AY Honors/Hearing"

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Revision as of 05:49, 13 January 2021

Other languages:
English • ‎español • ‎français • ‎português do Brasil

Template:Honor tab

Overview

The Challenging Part

The most challenging requirement of this honor is probably this:

2. Activity 1 – Make a model eardrum (Also known as the tympanic membrane). Be sure to record your finished product on camera.

MAKE A MODEL EARDRUM (Also known as the tympanic membrane)

You will need: Plastic Wrap (cling film), container with wide opening, uncooked rice (or any other small grain), tin cookie sheet. This activity will help you to understand how sound travels through the air. Just stretch the piece of plastic wrap over the large container or pot. Make sure the plastic wrap is stretched tightly over the container. The plastic represents the eardrum. Place about 20-30 grains of uncooked rice or grains on top of the plastic wrap. Now you need a noise maker, a tin cookie sheet or baking tray works well. Hold the cookie sheet close to the plastic sheet to create a “BIG BANG” noise and watch the rice grains jump. The “big bang” produces sound waves (changes in air pressure) that cause the plastic sheet to vibrate which causes the rice grains to move. Sound waves vibrate the eardrum in much the same way.

[[AY Honors/Hearing/Requirements|Tab Name/Printable Version]]


1. How many parts of the outer ear are there? How do they function?


2. Activity 1 – Make a model eardrum (Also known as the tympanic membrane). Be sure to record your finished product on camera.

MAKE A MODEL EARDRUM (Also known as the tympanic membrane)

You will need: Plastic Wrap (cling film), container with wide opening, uncooked rice (or any other small grain), tin cookie sheet. This activity will help you to understand how sound travels through the air. Just stretch the piece of plastic wrap over the large container or pot. Make sure the plastic wrap is stretched tightly over the container. The plastic represents the eardrum. Place about 20-30 grains of uncooked rice or grains on top of the plastic wrap. Now you need a noise maker, a tin cookie sheet or baking tray works well. Hold the cookie sheet close to the plastic sheet to create a “BIG BANG” noise and watch the rice grains jump. The “big bang” produces sound waves (changes in air pressure) that cause the plastic sheet to vibrate which causes the rice grains to move. Sound waves vibrate the eardrum in much the same way.


3. What are the ‘auditory ossicles’ and name their parts.

4. What is the function of the middle ear?

5. Is the Eustachian tube a part of the middle ear? What is its function?

6. Which is true about the inner ear and balance?
a. The semi-circular canals detect linear motion
b. The utricle and saccule detect linear motion
c. The cochlea detects linear motion
d. The utricle and saccule detect rotary motion

7. Select the statements which are TRUE for the Cochlea.
a. It is found in the outer ear
b. It makes vibrations
c. It turns vibrations into electrical signals
d. Signals are sent from the cochlea to the auditory nerve
e. C and D

8. Mention the steps to good ear hygiene.

9. What are some ways which can help you to protect your ear from damage or hearing loss?

10. Why is hearing very important in life? Do humans hear better or worse as they get older?

11. Activity 2 – Measuring sound distances.

Be sure to record your results on the worksheet.

You will need: Tape measure/metre stick, piece of paper, pen/pencil, a field/open area.

How to play: One person stands at one end of an open area (preferably outside) and someone else calls out a word (do not shout) and, gets further and further away until the other person cannot hear the word anymore. Count how many metres the person was placed away from the other person until they could not hear anymore. Write down the score on a piece of paper and, do it for every member of the family then, at the end see who has better hearing.

12. Select all the statements which apply to a ‘sound source’.
a. An object vibrates
b. Vibrations vibrate air particles
c. The brain
d. A drum
e. A, B and D
f. A, C and D

13. What is a sound wave caused by?
a. A moving flow of Electrons
b. Pitch
c. Volume
d. Vibration of air particles
e. All the above
f. A and C

14. Activity 3 – Observing differences in sounds.

Write down your observations below, explaining the differences in the sound.

You will need: Pencil and paper.

Collect all things you have at home which can help you to differentiate sounds. Example, a glass of water. Take 3 glasses of water, put water in one at a low level, one at the middle and a full glass of water. Take a spoon or anything which can help you to hear the sound from each glass and tap the side of each glass. Observe the differences in the sound that comes off the glass.

Glass Level of water What does it sounds like?
1 Low
2 Half-full
3 Full

15. Find at least four Bible texts that specifically mention hearing or the ear.

16. Summarize in your own words one Biblical story that refers to the sense of hearing.

Printable Answer Key Tab Name/Edit Answer Key


1

How many parts of the outer ear are there? How do they function?



2

Activity 1 – Make a model eardrum (Also known as the tympanic membrane).

Be sure to record your finished product on camera.

MAKE A MODEL EARDRUM (Also known as the tympanic membrane)

You will need: Plastic Wrap (cling film), container with wide opening, uncooked rice (or any other small grain), tin cookie sheet. This activity will help you to understand how sound travels through the air. Just stretch the piece of plastic wrap over the large container or pot. Make sure the plastic wrap is stretched tightly over the container. The plastic represents the eardrum. Place about 20-30 grains of uncooked rice or grains on top of the plastic wrap. Now you need a noise maker, a tin cookie sheet or baking tray works well. Hold the cookie sheet close to the plastic sheet to create a “BIG BANG” noise and watch the rice grains jump. The “big bang” produces sound waves (changes in air pressure) that cause the plastic sheet to vibrate which causes the rice grains to move. Sound waves vibrate the eardrum in much the same way.



3

What are the ‘auditory ossicles’ and name their parts.



4

What is the function of the middle ear?



5

Is the Eustachian tube a part of the middle ear? What is its function?



6

Which is true about the inner ear and balance?
a. The semi-circular canals detect linear motion
b. The utricle and saccule detect linear motion
c. The cochlea detects linear motion
d. The utricle and saccule detect rotary motion



7

Select the statements which are TRUE for the Cochlea.
a. It is found in the outer ear
b. It makes vibrations
c. It turns vibrations into electrical signals
d. Signals are sent from the cochlea to the auditory nerve
e. C and D



8

Mention the steps to good ear hygiene.



9

What are some ways which can help you to protect your ear from damage or hearing loss?



10

Why is hearing very important in life? Do humans hear better or worse as they get older?



11

Activity 2 – Measuring sound distances.

Be sure to record your results on the worksheet.

You will need: Tape measure/metre stick, piece of paper, pen/pencil, a field/open area.

How to play: One person stands at one end of an open area (preferably outside) and someone else calls out a word (do not shout) and, gets further and further away until the other person cannot hear the word anymore. Count how many metres the person was placed away from the other person until they could not hear anymore. Write down the score on a piece of paper and, do it for every member of the family then, at the end see who has better hearing.



12

Select all the statements which apply to a ‘sound source’.
a. An object vibrates
b. Vibrations vibrate air particles
c. The brain
d. A drum
e. A, B and D
f. A, C and D



13

What is a sound wave caused by?
a. A moving flow of Electrons
b. Pitch
c. Volume
d. Vibration of air particles
e. All the above
f. A and C



14

Activity 3 – Observing differences in sounds.

Write down your observations below, explaining the differences in the sound.

You will need: Pencil and paper.

Collect all things you have at home which can help you to differentiate sounds. Example, a glass of water. Take 3 glasses of water, put water in one at a low level, one at the middle and a full glass of water. Take a spoon or anything which can help you to hear the sound from each glass and tap the side of each glass. Observe the differences in the sound that comes off the glass.

Glass Level of water What does it sounds like?
1 Low
2 Half-full
3 Full



15

Find at least four Bible texts that specifically mention hearing or the ear.



16

Summarize in your own words one Biblical story that refers to the sense of hearing.




References


Content on this wiki is generated by people like you, and no one has created a lesson plan for this honor yet. You could do that and make the world a better place.

See AY Honors/Model Lesson Plan if you need ideas for creating one.