| A | B |
|---|
| Light | a form of energy that can be seen |
| photons | small bunches of energy that make up light |
| visible spectrum | the band of colors that make up white light |
| prism | a clear piece of glass or plastic that is shaped like a triangle and can be used to seperate white light |
| image | a copy or likeness |
| plane mirror | a flat, smooth mirror |
| concave mirror | a mirror that curves in the middle |
| focal point | the point where reflected light rays from a concave mirror come together in front of the mirror |
| convex mirror | a mirror that curves outward at the middle |
| refraction | the bending of a wave as it moves from one material to another |
| lens | a curved piece of clear material that refracts light waves |
| concave lens | a lens that is thin in the middle and thick at the edges |
| convex lens | a lens that is thick in th middle and thin at the edges |
| nearsighted | able to see clearly only things that are close up |
| farsighted | able to see clearly only things that are at a distance |
