Eye Web Quest

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:

b) FUNCTIONS:

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.