It features a Flash movie, followed by a quiz and printable activities. Color can sway thinking, change actions, and cause reactions. It can irritate or soothe your eyes, raise your blood pressure or suppress your appetite. This incredibly extensive site is my pick of the day for high school students and adults. The color of an object depends on what happens as light hits it.
Objects absorb some colors and reflect others.
The colors you see are the colors reflected by the object. A green leaf absorbs all colors except green. It reflects green, so green is the color you see. It concludes with a multiple-choice quiz appropriate for mid to upper elementary grades. The eye is a very complicated machine with lots of special parts.