LINGHT AND SHADOWS
We require lightn top see thing around us . The sunlight up the day and the moon light up the night. Beside giving light the sun also give us warmth. The object that give out light are called lunimous object objects. Example:- sun,bulb,torch, The object that do not give out their own light are called non luminuys object.Example:-stone , paper , tree , table We can see an object when light from a luminous object sour fall on it and the reflacted light entefr our eyes the moon does not have oun light it shine because the reflatiojn of the sun. LIGHT Light is an invisible source of the created a sensation of vision. LIghty ttravel in the strate line = Light a candle and put on a table. = Tke a hollow pipe and look throught flame of the candle through it. = Now bend th4e pipe and look throught at the flanme of the candle throught it. You can see the light of the kcandlewhen the pipe isa staight. When the piupeb is bend ypou cannot see the light