This page contains an ActiveX Animation that your browser was unable to view. Click here to open pres0.ppz fullscreen. The intensity of the light, its source, and its location will change the way we perceive color.
Light is composed of waves that vibrate at different speeds.
When the light waves strike a prism, the rays of light refract, or bend, at different angles. We see the individual colors as bands of light, which is called a spectrum. The colors blend gradually, so that we also see intermediate colors between these main colors.