Science Words

1.- Electromagnetism: the production of magnetism by electricity and the production of electricity by magnets.

2.- Electromagnetic Spectrum: all the wavelenghts of visible and invisible light in order from short (gamma rays) to long (radio)

Infrared (Used in Remote Controls)

Radio Waves (Used in Microwaves)

Ultraviolet: (Used in Tanning Machines)

X-Ray

Gamma Rays (Moon seen with Gamma Rays)

3.- Laser: a device that produces a thin stream of light of just a few close wavelenghts.

Link with more information: http://sci-toys.com/scitoys/scitoys/light/invisible/invisible.html