Study Hall
Do homework.
Read silently.
Do not talk.
Sharpen your pencils and go to your assigned
seat
Warm-Up
Without moving your head,
look up,
Look down,
Look all around,
In your notebook, explain how can you do this
with your eye?
Explanation
• You have 6 muscles attached to your eyeball
which allows you to move your eye so you can
look in different directions without moving
your head.
Write these notes!
1st Block:
Visible Light Spectrum– “ROY G BIV”
•
•
•
•
•
•
•
R-red
O-orange
Y-yellow
G-green
B-blue
I-indigo
V-violet
• Human eyes only respond to “visible light
wavelengths” within the electromagnetic spectrum
Reflected Light: Introduction Video
• Discovery Ed video
“ Reflected Light” (1:08 minutes)
Write these
notes!
Reflected Light - Notes
• Light can be absorbed or reflected.
• Absorbed light = the colors we do not see
• Reflected light = the colors we see
Write these
notes!
Reflected Light - Notes
• White light = contains all the colors (ROYGBIV)
• White light shining on an apple:
The red light bounces off the apple and enters our eyes
while all the other colors are absorbed
Reflected
Light
Notes
Write these notes!
• White objects reflect all the colors (ROYGBIV)
• wear light colored clothing in the summer, we feel
cooler (reflecting more)
• Black light reflects no color, it absorbs all the
colors of light
• wear dark clothing in the summer, we feel hotter
(absorbing more)
(2nd & 3rd Block) Now it’s your turn….
• Pick five items in the classroom and for each
item list what color is being reflected and
what colors are being absorbed.
Ms. Maas’ Five!
1. Black Lab Table Tops = it is absorbing all colors
(ROYGBIV) and reflecting black (we see)
2. Yellow Textbooks = reflecting yellow (we see)
and absorbing ROGBIV
3. Blue Chairs = reflecting blue (we see) and
absorbing ROYGIV
4. Green Plant = reflecting green (we see) and
absorbing ROYBIV
5. American Flag Red Stripes = reflecting red (we
see) and absorbing OYGBIV
Write these
notes!
Light Behaves Differently
• Some materials scatter light;
• Some materials refract (bend) the
light.
Refracted Light: Introduction Video
• Discovery Ed video
Refracted Light (1:44 minutes)
Write these
notes!
Refracted Light - Notes
• colors of the visible spectrum travel at their
own unique speed.
• Light travels slower through water and glass
than it does through air
th Block: Refracted Light - Notes
4
Write these
notes!
• White light through a glass prism =light
refracted (or bent) and separated into the
visible spectrum (ROYGBIV).
• Colors refract (bend) at different angles
because each color travels at different speeds.
• Violet is bent the most and red is bent the
least
Write these
notes!
Refracted Light - Notes
• White light through a prism = all seven colors
refracted
• The refracted spectrum can be bent again,
with a second prism = back to white light!
In Interactive Notebooks…
• In your Table of Contents, add a new entry:
“Parts of the Eye : Notes”
Number the entry
Go to this page inside your notebook and title the
page “Parts of the Eye: Notes” and number the
page
The Human Eye
• Discovery Ed video
“The Human Eye” (2:17 minutes)
The Human Eye: Parts
•
•
•
•
•
•
•
The Human Eye:
Cornea
Pupil
Lens
Retina
Optic Nerve
Brain
Your EYE!
• If you reach up and feel around your eye,
you’ll feel the bone of your skull.
• There’s fat surrounding your eyeball to keep it
from bumping up against the bone and getting
bruised.
• In the cow’s eye dissection, we cut away all
the fat and muscle so that we can see the
eyeball.
Visible parts of the human eye
• Pupil- the dark center
• Iris- the colored part (blue, green, brown,
hazel)
• Scalera- white part
Cow Eye Video Dissection
• Humans = 6 muscles controlling our eyeball
(can look in different directions without
moving our heads)
• Cows = 4 muscles controlling their eyeball
(they can’t roll their eyes like you can)
• So cows have to turn their heads to look
around!
Cow Eye Dissection Video
• If the video makes you uncomfortable, please
simply put your head down on your desk.
• While we are watching, please act as
scientists.
• This means, do not scream and shout, simply
put your head down if something makes you
uncomfortable.
• http://www.exploratorium.edu/learning_studi
o/cow_eye/step01.html
Parts of the Eye Activity
• Glue this handout into your notebook
• Circle the really important ones and number
them
• #1 Cornea
• #2 Pupil & Iris
• #3 Lens
• #4 Retina
• #5 Optic Nerve
Graphic Organizer
• Draw a graphic organizer that looks like this in
your notebook:
• Follow along as we list the order in which light
passes into your eye
Cornea
Light
Pupil-Iris
Lens
Brain
Retina
Optical Nerve