Kerissa berg 11/12/10 2 nd

 is the range of all possible frequencies of electromagnetic radiation. The "electromagnetic spectrum" of an object is the characteristic distribution of electromagnetic radiation emitted or absorbed by that particular object.

 is electromagnetic radiation of a wavelength that is visible to the human eye (in a range from about 380 or 400 nanometers to about 760 or 780 nm).

Example:Picture:  Light from flashlight  Light from cell phone  Light from iPod  Light from computer  Light from light bulb  Glow stick