Study guide for Chapter 28
1)	Know that the colors we see are determined by several phenomenon; the color and frequency of  light being reflected, the light absorbed, the light shining on it
2)	Know that much of the ultra violet light from the sun is blocked by ozone
3)	Know which light humans are most sensitive to
4)	Know that different colors of light have different wave frequencies
5)	Define complimentary colors
6)	Know the colors that results in magenta
7)	Know what determines the color of an opaque object
8)	Know why the sky is blue
9)	Know why clouds are white
10)	What is the true color of water
11)	What is the function of a spectroscope?
12)	What are the primary colors?
13)	What is the complementary color of blue?
14)	What is the complementary color of green?
15)	What is a pigment?
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