Shadow

Shadow

A shadow is formed when a light from a light source is blocked by an opaque or translucent object.

                     The Size of a shadow can be changed by changing the:

     -  distance between the light source and the object.

              -  distance between the object and the screen.

Now, do you know how to change the shape of a shadow?

The shape of shadow can be changed by changing:

-The position of the light source.

-The position of the object.

                                    Historical Facts:

In the past, the length and position of shadows are used as a sundial to tell the time of a day.