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Study Hall
Review your notes (Quiz Friday on Sound)Complete assignments for other classes.
Read a book. Sit Quietly.
Sharpen your pencils and go to your assigned seat
NO Talking!
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Warm Up (2 minutes)
• Explain how a tuning fork illustrates sound waves (explain in terms of sight, touch, and hearing)
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Review (2 minutes) 3rd and 4th
• You are a sound wave; describe the path you take to reach the brain!
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Sound in the Ear 3rd and 4th
The Outer Ear funnels waves into the ear canalwhere they strike the eardrum (middle ear). The eardrum vibrates, causing the tiny bones hammer, anvil, and stirrup to amplify, or increase, sound. These bones are attached to the cochlea, which changes vibrations to electrical messages which are sent through the auditory nerve to the brain where it interprets the sound.
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How the ear works - animation
• http://www.youtube.com/watch?v=ahCbGjasm_E
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Station 1
• 1st & 2nd Blocks Only: Station 1: Completing Notes from PowerPoint
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Sound and Volume – write these notes
• Volume- the loudness or softness of a sound that you hear.
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Sound Waves – write these notes
• Frequency (Definition review: the number of cycles a waves completes in a period of time)
• More energy a sound has = higher its frequency
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Sound – write these notes
• Frequency determines pitch • Pitch definition = how high or low a
sound is; due to how fast it vibrates)
• Example: A tuba and a flute can both play the musical note “C”, however they sound very different because of frequency and pitch
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Pitch and Sound – write these notes
• object vibrates quickly = high-pitched sound, high-frequency, short wavelength
• Example = flute has a higher frequency & pitch
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Pitch and Sound – write these notes
• object vibrates slowly = low-pitched sound, low frequency, long wavelength
• Example = tuba has a low frequency & pitch
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Sound – write these notes
• Something is heard when sound waves enter ear
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Structures of the Human Ear – write these notes
• Outer Ear catches sound waves and funnels them into the ear canal where they strike the eardrum (middle ear)
• Eardrum is a thin, taut (tight) membrane which vibrates as sound waves strike
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Structures of the Human Ear – write these notes
• As the eardrum vibrates, it causes tiny bones (the hammer, the anvil, and the stirrup) to amplify, or increase, sound.
• These bones attach to the cochlea (a liquid filled chamber) which changes vibrations to electrical messages
• Messages are sent through the auditory nerve to the brain
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Diagram of the Ear
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Vocal Chords and Sound – write these notes
• Vocal chords produce sound. • Larynx = the voice box. • Trachea = windpipe (the tube that connects
your lungs to your throat)• The vocal chords vibrate to create the sound
of the voice.Put your hand on your throat and hum…you are feeling your vocal chords vibrate!
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Vocal Chords
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Brain Pop Quiz
• With your ‘pinch strip’, select the best answer to the online quiz
• Good Luck!
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Station 2
• Station 2: “Reading articles with questions”• You will check your answers in a SOLUTION
STATION for: • Reading 1 “High Sounds and Low Sounds”• Reading 2 “Getting to Know: Volume and
Pitch”• Reading 3 “Playing Along”
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Station 3
• Station 3: “Discovery Ed” computer simulations and explorations
• Only complete Activities B & C (do not do activity A)
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Cochlear Implants
• Stop at 2 minute mark Cochlear Implant
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Felix’s Jump – Breaking the Sound Barrier
• http://www.youtube.com/watch?v=qDdFlhzNq8o
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K-W-L Chart Completion
• Complete the “What I’ve Learned about Sounds” column
“What I Know about Sounds”:
“What I Wonder about Sounds”:
“What I’ve Learned about Sounds”