Science Term 2 Test 1

the black part that light goes through

• pupil

• iris

• cornea-lens

• retina

the colored part of the eye

• pupil

• iris

• cornea-lens

• retina

the clear front part of the eye

• pupil

• iris

• cornea-lens

• retina

What are the functions of eyelids and eyelashes

• to protect and rehydrate the eyes

• keep dirt out of the eyes

• keep debris out of the eys

• all of the above

To cause light to bounce off a material

• process

• envrionment

• reflect

• survive

Define vision

• an attempt to find out about something

• the ability to see

• how an animal gets information from its environment

• to use any of the five senses to gather information about something

What sends messages to the brain from the eye?

• Optic Nerve
• Cornea

When no light passes through an object we call it?

• Opaque
• Transparent

When all or most light passes through an object it is?

• Transluscent
• Opaque

How does light travel?

• fast and straight
• slow and smooth
• fast and crooked
• zig zag and high