Cards (7)

    • light is a form of energy that travels at very high speeds
    • how does l travel?
      via radiation as an electromagnetic wave
    • visible light is the portion of the electromagnetic spectrum that is visible to the human eye. Other portions are radio waves, infrared, microwaves, ultraviolet, X-rays and gamma rays.
    • different wave uses
    • ultraviolet light uses
      vitamin D production, bacteria killer, black light
    • infrared light uses
      tv remote, heat detection, food warming lamps
    • x-ray uses
      medical imaging, airport security