Name:
EYE WEB QUEST
You will learn about the eye by completing the following Webquest. READ and FOLLOW all
instructions listed below in the order they appear. Make sure that everything you type is IN
YOUR OWN WORDS! Do NOT copy and paste!
Purpose: To deepen the understanding of how the eye functions and how it utilizes light.
1) Save this document to your “Student” folder as “Eye Webquest”. You will be typing the
questions to your answers in this document.
PART 1: WHAT IS AN EYE?
Instructions:
1) Right click “open hyperlink” on the website address below. Type your answers to the question below
from the information on this website. Type your answers directly in this word document.
http://www.myeyeworld.com/files/eye_structure.htm
List the FUNCTION of each of the parts of the eye:
a) lens:
b) cornea:
c) retina:
d) pupil:
e) iris:
f) sclera:
g) optic nerve:
h) ciliary body (muscle):
2) Right click on each of the websites. Choose “Open hyperlink”. You will find a flash animation that will help
you to understand the operation of the eye. When you complete them all, label the diagram below.
Flash animation 1-Eye Structure and Function
http://www.kscience.co.uk/animations/eye_function_drag.htm
Flash animation 2- Eye Structure
http://www.kscience.co.uk/animations/eye_drag.htm
Flash 3- structure
http://www.kscience.co.uk/animations/eye.htm
Drag all the labels for parts AND functions below onto the diagram:
a) PARTS:
sclera
cornea
ciliary bodies
lens
iris
retina
Optic nerve
pupil
b) FUNCTIONS:
Focuses light onto retina
transparent and focuses light
Changes size to control light
Carries impulse to brain
Contracts to change lens shape
Tough outer coat
Gap that light passes through
Contains light receptor cells
Part 2: What is Vision?
1) Right click “Open hyperlink” on the website address below. As you read through the
information about your eyes, find 3 important items to know about your eyes from each reading
section.
“Your Eyes”.
Big As a Ping Pong Ball:
a.
b.
c.
Iris Is The Colorful Part:
a.
b.
c.
Light, Lens, Action:
a.
b.
c.
A Muscle Makes It Work:
a.
b.
c.
Rods and Cones Process Light:
a.
b.
c.
Helping You See It All:
a.
b.
c.
To the Brain!:
a.
b.
c.
Have No Fear, You Have Tears:
a.
b.
c.
PART 3: Optical Illusions
1) Right click “Open hyperlink” on the website address below and answer the following questions by typing in
the answer below.
http://www.buzzle.com/articles/how-do-optical-illusions-work.html
1) What are optical illusions?
2) What are some types of optical illusions?
3) Explain the science behind one type of optical illusions.
4) How does the human eye interpret optical illusions.
5) Explain what a mirage is.
Go to the following website and spend some time exploring optical illusions. Be sure to switch up the
type of illusions that you are viewing to ensure you don’t get dizzy!! You might also have to take a
break from the computer to walk around.
View optical illusions at: http://www.michaelbach.de/ot/
BONUS: COMPARE A HUMAN EYE TO A COW EYE
Look for the parts that you labeled on your human eye diagram! Complete the Venn Diagram comparing the
similarities and differences between a human eyeball and a cow eyeball. You will have to search the internet
to find out about the cow eyeball.
BOTH
HUMAN EYE
COW EYE