Light need medium to travel through

dark areas where something blocks out light

If the light source is small, there is a full shadow called ............................

If the light source is large or spread out, there is a partial shadow called ...............

If the light source is small,

here is a full shadow called an umbra

and the edges of the shadow are ................................

If the light source is large or spread out,

there is a partial shadow called a penumbra

and the edges of the shadow ......................

Anything that gives out light is

A camera forms an inverted image on a screen.

gives out light

does not allow light to travel through it

upside down (describing an image of an object)

the very dark part of a shadow

does not give out light

when light ................... from a mirror you see an image

light is ...................... by objects that are opaque

If you hold up a piece of white cloth you can see light coming through it, but you cannot see through it.

It is described as ………………………………………..

You see non-luminous objects because light is  ................................

Wood and concrete are examples of materials that are

Water and glass are examples of materials that are