Thursday, November Focus: parts of the ear & vocal cords
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Transcript of Thursday, November Focus: parts of the ear & vocal cords
Science
Thursday, November 5 2015Focus: parts of the ear
& vocal cords
Warm Up..
• Place your backpacks along the back wall• Grab your notebook, pencil, agenda• Complete Thursday’s warm up now! DO NOT
WORK AHEAD! • REMEMBER YOU ARE QUIET IN YOUR SEAT
WORKING WHEN THE FINAL BELL RINGS
Agenda…
• Finish up Tuning Fork Lab with discussion and demo.
• KWL Chart in Notebook• Begin Parts of the Ear – guided notes – Color coding activity– Chromebook Activities
In your notebook…
• Think back to our sound labs and explain how a tuning fork illustrates sound waves (explain in terms of sight, touch, and hearing)
In your notebook…
• In terms of sight:• When we looked closely at the tuning fork after
hitting it on the table we could SEE VIBRATIONS• In terms of touch:• After hitting it on the table we could FEEL
VIBRATIONS• In terms of hearing:• After hitting it on the table we could HEAR SOUND
K-W-L Chart – 5 minutes
• Draw this table in your notebook now…“What I Know about Sounds”:
“What I Wonder about Sounds”:
“What I’ve Learned about Sounds”
K-W-L Chart- 3 minutes
• Complete the column “What I Know about Sounds” (try to list 3 things in this column)
“What I Know about Sounds”:
“What I Wonder about Sounds”:
“What I’ve Learned about Sounds”
Guided Notes Handout
• You will now receive a worksheet (1/2 sheet)• These are guided notes for how sound travels
to our ear and how it is picked up by our brains as sound
• Follow along as we work to fill in the missing words
Sound in the Ear
The Outer Ear catches sound waves and funnels them into the ear canal where they strike the eardrum.
Sound in the Ear
The eardrum is a thin, taut (tight) membrane which vibrates as sound waves strike it.
Sound in the Ear
As the eardrum vibrates, it causes the tiniest bones in our bodies to move.
These bones are known as the hammer, anvil, and stirrup.
Sound in the Ear
This movement amplifies, or increases, the sound.
This region is known as the middle ear.
Sound in the Ear
These bones are attached to the cochlea, which changes vibrations to
electrical impulses. The cochlea is a fluid-filled, snail shaped
cavern in your skull behind each ear.
Sound in the Ear
Electrical Impulses are sent along the auditory nerve to the brain where it is interpreted as sound. This region is known as the inner ear.
This is how we hear different sounds.
Fun Fact….• The inner ear also contains semicircular
canals, which function more for purposes of equilibrium than hearing.
• Do you know anyone that gets motion sickness?
• This part of the ear controls how our mind feels balance!
How the ear works - animation
• https://www.youtube.com/watch?v=HMXoHKwWmU8
Color Coding Activity – Parts of the Ear
• You will now receive a handout detailing the parts of the ear
• We will work to color code our diagram of the ear now
Follow along as we color code the Diagram of the Ear
Chromebook Activities
• 2 activities on StudyJams• 1 activity on BrainPop• You will receive several handouts explaining
these activities• We will review these now!
Study Jams The Senses Hearing
• You will go to study jams and type in a search box: the senses: hearing
• http://studyjams.scholastic.com/studyjams/jams/science/human-body/hearing.htm
• Watch the video
Study Jams The Senses Hearing
• Select the test yourself button to see how much knowledge you have on hearing!
• Record your score
Study Jams…Sound
• You will now watch another video on StudyJams • Before you start the video, write these questions in
your notebook leaving 2 lines between each question1. What causes sound?2. How does sound travel?3. What is the frequency of sound?4. What is a sound’s pitch?5. What is a sound’s volume and how is it measured?
Study Jams…Sound
• You will go to study jams and type in a search box: sound
• http://studyjams.scholastic.com/studyjams/jams/science/energy-light-sound/sound.htm
• Answer the questions you wrote in your notebook as you listen to the video
Study Jams Sound
• Select the test yourself button to see how much knowledge you have on sound!
• Record your score
BrainPop Video
• You will go to Brainpop to watch the video on Sound
• Username: jms• Password: jaguars• After you watch the video, complete the
activity page handout• Last take the classic quiz and record your score
Chromebooks….
• I will dismiss you by rows to get your chromebooks
• Once you are back at your seat, login• In a search box type StudyJams• Follow the directions on your handout• You have the rest of class to complete this !
Vocal Chords and Sound – write these notes in your notebook
• 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 your voice.Put your hand on your throat and hum…you are feeling your vocal chords vibrate!
Vocal Chords
Animation for how vocal cords work
• https://www.youtube.com/watch?v=R17yH0GSDvA
Exit Ticket…
• You are a sound wave; describe the path you take to reach the brain!