Vision

How fast does light travel?

• 186,000 miles per second
• 240 miles per hour
• one million miles per second
• 186 miles per second

Why did the coin disappear when you poured the water in the cup?

• Refraction

• Reflection

• Reduction

• It vanished!

What are the two jobs of a lens?

• focus and magnify
• focus and flip
• focus and see
• flip and see

What is it called when you bounce the laser off of a mirror?

• Reflection
• Refraction
• Concave
• Convex

What part of your eye sends the messages to and from your brain?

• retina
• optic nerve
• iris
• vitreous humor

What part of your eye is a muscle?

• iris
• sclera
• pupil
• retina

What parts of your eye protect your pupil so nothing gets in it?

• eyelid & cornea

• lens & retina

• iris & optic nerve

What is the retina?

• the back part of the eye where the image is formed

• the front part of the eye that is clear

• the black part that light goes through

• the colored part

the black part that light goes through

• pupil

• iris

• cornea-lens

• retina

What part of the eye allows us to see color?

• cones
• rods
• iris
• eyeball