Definition: A picture created by projecting an image onto a photosensitive surface such as a chemically treated plate or film, CCD receptor, etc.

Alright class, settle down now, let’s take a look and see, At the word “photographs,” it’s quite simple, you agree? The dictionary gives us a clue, a helpful little plea, "A picture created… for all to see!" Let's break it down in pieces, nice and slow, So every single student truly knows. “Photo” comes from “light,” you understand? – Like sunshine bright across the land! And "graphs" means pictures, a visual display, Of something captured there and then today. It’s about light hitting a surface, that's the key, A plate or film, or even CCD, you see! These things are sensitive to light, it’s true, They change when light shines through and through. So a photograph is made with light’s embrace, Creating an image in its special space. Does that make sense? Any questions for me? Let's discuss!