Grade 8 Exam Review 2018 - The Eye

Visible light is which type of wave?

• seismic
• mechanical
• longitudinal
• electromagnetic

Tags

NGSS.HS-PS4-3

The part of your eye that gives it its color.  It is a muscle that controls the size of your pupil.

• cornea
• lens
• pupil
• iris

The back of the eye;  an upside-down image of whatever you are looking at is projected here. 

• lens
• cornea
• pupil
• retina

The first part of the eye that light hits. This also protects the Iris and Pupil.

• lens
• cornea
• pupil
• retina

Which two parts of the eye work to BEND light that enters the eye

• Iris and Sclera 
• Cornea and Lens
• Iris and Pupil
• Optic Nerve and Retina

The outer layer(white part) of the eye is the ________.

• Sclera
• Retina
• Choroid
• Cornea

Why is it ideal for the pupil to be black?

• Black is a nice contrast to the color of our iris
• It will reflect all of the light because black is all color
• Black is the absence of light and will absorb all color

This part sends electrical signals/messages to your brain

• neurons
• Motor Neuron
• retina
• Optic Nerve

Lets the light in and it is the black portion of eye.

• pupil
• retina
• lens
• cornea

If I am affected by color blindness which part of my eye is missing or is extremely sensitive?

• Rods on the Optic Nerve
• Cones on the Retina
• Rods on the Retina
• Cones on the Optic Nerve