EYE LENCE

PURPOSE : To demonstrate how an eye lens works.

MATERIALS : Magnifying glass

                        Sheet of typing paper

                        Ruler
PROCEDURE :

• Darken a room.
  
• Hold the magnifying lens about 5 feet from an open window.
  
• Position the paper on the opposite side of the lens from the window.
  
• Slowly moves the paper back and forth from the lens until a clear image of the window and object outside appear.

RESULTS : A small colored inverted image forms on the paper.
WHY ? Just like the lens in a human eye, the light changes direction as it passes through. The light hits the paper as light hits the retina when it passes through the lens of an eye and forms an inverted image.