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8th Grade Science

Vision and Electromagnetic Waves

TermDefinition
Cornea transparent layer at the front of the eye; covers both the iris and pupil; also helps refract light
Pupil a hole that controls the amount of light that enters the eye by adjusting in size
Iris the part of the eye that adjusts the size of the pupil; provide characteristic eye color
Lens part of the eye responsible for precisely focusing light to form an image
Convex Lens lens that is thicker at the center than at the edges
Retina structure at the back of the eye upon which the lens forms an image
Optic nerve eye structure that transmits information about an image formed on the retina to the brain
Electromagnetic spectrum collection of all known electromagnetic frequencies
Radio Waves electromagnetic waves that have the longest wavelength, lowest frequency, and least amount of energy
Microwaves electromagnetic waves that have shorter wavelengths, higher frequencies, and more energy than radio waves
Visible light narrow section of the electromagnetic spectrum that the human eye can detect
Infrared light light on the electromagnetic spectrum, light with wavelengths that fall between visible light and microwaves
Ultraviolet light electromagnetic radiation having wavelengths that fall between visible light and x-rays X-rays
X-rays electromagnetic waves with short wavelengths, high frequencies and high energy that can travel through soft tissue
Gamma rays shortest electromagnetic waves that have the highest frequencies and highest energy
Created by: mdsmith-mincey
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