1. Interactions of light & matter
The Journey Through the Eye

2. Transmission
transparent
translucent
opaque

3. Translucent- allows most of the light to pass through but the object appears blurry

4. Transparent A material that allows almost all of the light striking it
to pass through

5. Opaque
a material through which light does not pass

6. Intensity
the amount of energy that passes through a square meter of space in one second
it depends on the amount of energy a source emits

7. Sunsets
After the Sun actually sets, its light rays refract, and you see the Sun above the horizon Our atmosphere slows down the Suns rays and the light refracts toward Earth’s surface Our brain thinks the light traveled in a straight line, and the Sun looks higher in the sky than it actually is..

9. Vision & the Eye
Light enable objects to be seen

10. The Eye Light enters the eye through the cornea
The cornea and the lens focus onto the retina

11. Cells in the retina absorb the light and send signals about the light to the brain

12. 40 cool facts about your eye