Archive for 'sience' Category

lights and shadows

By Adnaan - Last updated: Monday, June 22, 2009

shadow is by an object blocking the lihgt source.
A shadow gets bigger when the  object  gets closer to the light source.
A shadow gets smaller when the object gets far from the light source.
Whithout light we would no not be alive because thre light source  to feed the plant and the plants will die then we would die because plants give us oxygen [...]