:Complete

is the main source of light on earth

 The kerosene lamp is an example of ……………… source of light

is a phenomenon results from the traveling of light in straight lines

The idea of……depends on the formation of images through narrow holes

The ……………. object to the light source, the bigger the shadow

 and …………… are translucent materials

   :Write the scientific term

The light energy that can be seen

The material which things behind are less clearly seen

The reflection of light when it falls on smooth, bright and plane surface

A property of light that makes us sees objects

Bouncing of light rays when it falls on an object

  The change in direction of light that is caused by the traveling of light from one medium to another