INTERESTING FACTS
PARTS OF THE EAR
EXPERIMENTS
RANDOM ?
TELL ME MORE
100
WHAT IS THE MOST IMPORTANT PART OF THE EAR TO HELP US HEAR?
COCHLEA
100
THIS PART OF OUR EAR ACTS LIKE A FUNNEL - IT DIRECTS SOUND WAVES INTO OUR EAR.
PINNA
100
SOUND WAVES CAN TRAVEL THROUGH LIQUID, AIR AND SOLIDS. IN OUR TELEPHONE CUPS - ONCE THE MOLECULES STARTED PUSHING ON EACH OTHER, WHAT TWO THINGS DID THEY TRAVEL THROUGH TO GET TO OUR EAR?
CUP AND STRING
100
TRUE OR FALSE:  SOUND WAVES TRAVEL INTO THE EAR AND CAUSE THE EARDRUM TO VIBRATE?

TRUE. THE SOUND WAVES PASS INTO THE EAR AND CAUSE THE EARDRUM TO VIBRATE.

100

TRUE OR FALSE: ONCE DAMAGED, OUR HAIR CELLS CAN NEVER BE FIXED.

TRUE:  WE HAVE TO PROTECT OUR EARS BECAUSE ONCE THE HAIR CELLS ARE DAMAGED, WE CAN'T GET THAT HEARING BACK.
200
WHAT DOES EAR WAX DO?
PROTECTS OUR EARS
200
THIS PART OF OUR EAR IS EASILY DAMAGED AND IS MADE UP OF A VERY THIN PIECE OF SKIN.
EAR DRUM
200
WHEN WE TAPPED ON THE SIDES OF THE GLASSES - THE ONE WITH NO WATER HAD A HIGHER OR LOWER PITCH?
THE GLASS WITH NO WATER HAD A HIGHER PITCH BECAUSE IT WAS HEAVIER AND HARDER FOR THE GLASS TO VIBRATE.
200
HEARING IS ONE OF THE ______________ SENSES.
HEARING IS ONE OF THE 5 SENSES.
200
TRUE OR FALSE:  AS WE AGE, WE CAN EASILY HEAR HIGH AND LOW PITCH SOUNDS.
FALSE - AS WE AGE, WE CANNOT HEAR THE SAME HIGH PITCH SOUNDS.
300
NAME THE THREE SMALLEST BONES IN OUR BODY THAT COULD EASILY FIT ONTO A DIME?
THE SMALLEST BONES ARE FOUND IN OUR MIDDLE EAR:

HAMMER, ANVIL AND STIRRUP

300
THE COCHLEA RESEMBLES WHAT?
A CURLED UP SHELL
300
WHAT DID MRS. PETERS SHOW THAT REPRESENTED AN EAR TRUMPET (THE FIRST KIND OF HEARING AID)?
OLD-FASHIONED EAR TRUMPETS WERE MADE OUT OF SHELL, WOOD AND METAL.  MRS. PETERS SHOWED US A FUNNEL.
300
THE EAR IS DIVIDED INTO 3 MAIN PARTS;

 ___________  EAR

____________ EAR

____________ EAR

THE EAR IS DIVIDED INTO:

THE OUTER EAR, THE MIDDLE EAR AND THE INNER EAR.


300

THE INNER EAR IS MADE UP OF WHAT THREE PARTS?

INNER EAR:

SEMI-CIRCULAR CANALS, COCHLEA AND THE AUDITORY NERVE

400
IF WE ARE CONSTANTLY EXPOSED TO LOUD SOUND OVER __________ dB, WE WILL HAVE PERMANENT HEARING DAMAGE.
IF WE ARE EXPOSED TO SOUNDS OVER 85 dB, EVENTUALLY WE WILL LOSE SOME OF OUR HEARING.
400
THE THREE LOOPS IN OUR EARS THAT HELP US WITH OUR BALANCE ARE CALLED THE _______________.

Hint:  They were made out of pink pipe cleaners in our experiment.

SEMI-CIRCULAR CANALS
400
WHICH TWO PARTS OF OUR EARS ARE FILLED WITH HAIR CELLS AND FLUID?
THE COCHLEA AND SEMI-CIRCULAR CANALS ARE FILLED WITH HAIR CELLS AND FLUID.
400
THE HAMMER, ANVIL AND STIRRUP ARE ALSO CALLED THE __________________. 
OSSICLES
400
WHEN YOU STOP SPINNING OR STEP OFF OF A FAST RIDE, WHAT IN YOUR SEMI-CIRCULAR CANALS IS STILL MOVING?
WHEN YOU STOP SPINNING, THE FLUID IN YOUR 

SEMI-CIRCULAR CANALS STOPS MOVING.

500
WHEN WE ARE TALKING ABOUT HOW LOUD THINGS ARE WE MEASURE THE SOUND IN ___________. 
SOUND IS MEASURED IN DECIBELS - dB
500
ONCE THE VIBRATIONS IN THE COCHLEA ARE CHANGED TO ELECTRICAL MESSAGES, THIS PART OF THE EAR SENDS THOSE MESSAGES TO THE BRAIN SO WE CAN HEAR.
AUDITORY CANAL
500
WHAT ARE THE MISSING STEPS OF THE SCIENTIFIC METHOD (EXPERIMENT)? THERE ARE 6 STEPS:

 

_______________, HYPOTHESIS, MATERIALS,

PROCEDURES, _____________ AND CONCLUSIONS

THE MISSING STEPS ARE:


QUESTION AND OBSERVATIONS

500
THE OUTER EAR IS MADE UP OF WHICH TWO PARTS?
PINNA AND AUDITORY CANAL.
500
HOW DO THE SOUND WAVE VIBRATIONS TRAVEL THROUGH THE EAR?
SOUND WAVES TRAVEL THROUGH THE PINNA, DOWN THE AUDITORY CANAL, TO THE EAR DRUM AND THEN TO THE HAMMER, ANVIL, STIRRUP AND THEN INTO THE COCHLEA / SEMI-CIRCULAR CANALS AND THEN THROUGH THE AUDITORY NERVE TO THE BRAIN.
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