colors of light

prism:a cutpiece of clear glass(or plastic)with two oppositesides in the shape of a triangle or other geometric shape.          

 

spectrum: a band of colors produced when light goes through a prism.

primary color:red,green,or blue; mixing these colors can produce all the colors of the spectrum.

primary pigment: magenta,cyan,yellow;material with any of these colors absorbs one primary color of light and reflects the other two.