How can humans use the electromagnetic spectrum in everyday life?

- - look both ways before crossing the street (light)

- - listen to the weather report (radio waves)

- - make a cellphone call (radio waves)

- - watch the game on TV (radio waves)

- - heat up a hunk of meatloaf for a fast snack (microwaves)

- - stand in the sunshine to warm up (infrared radiation)

- - lie in the sun to work on your tan (ultraviolet radiation)

- - the dentist makes a new set of pix of your teeth (X-rays)