Vocabulary 3

prism: A cut piece of clear glass (or plastic) with two opposite sides 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: Megenta, cyan, yellow; material whith any of these colors absorbs one primany color of linght and reflects the other two.