Page 1 - HOW WE SEE THINGS
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SAI International School


                                                        CLASS-3


                                        LN - HOW CAN WE SEE THINGS


               Learning Objective: Students will be able to understand the concept of luminous and

               non-luminous objects.

               Students will understand that they can see an object because light reflects off the object into
               our eyes.

               1. Luminous objects – Objects that give out or emit light
               of its own are called luminous objects.

               Ex-Lamp, Sun

               2. Non-Luminous objects - Objects that do not give out or
               emit light of its own are called non-luminous objects.


               Ex- table, pencil

               How we can see things

               We are able to see objects when light from a luminous
               source reflects off non-luminous objects and enters our
               eyes.







               ACTIVITY


               Identify the luminous and non-luminous object from the picture given below.
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