| A | B |
|---|
| transparent | Material that allows ALL light to pass through |
| reflection | The bouncing of light off an object |
| translucent | Material that allows only SOME light to pass through |
| opaque | Material that allows NO light to pass through |
| electromagnetic spectrum | Light is one small part of a range of energy |
| retina | The place in your eye where light focuses |
| farsighted | A person whose eyeball is too short, the image forms behind the retina |
| convex | A lens that is thicker in the middle than at the edges |
| lens | A curved, transparent object that refracts light |
| refraction | The bending of light as it moves from one material to another |
| concave | A lens that is thicker at the edges than in the middle |
| visible light | The part of the spectrum that humans can see |
| nearsighted | A person whose eyeball is too long, the light focuses in front of the retina |
