An observation is the way someone looks at something, when someone is watching it, or looking at it and observing (watching) the way it moves, or looks. Also you can observe by using your 5 senses. (touch, smell, taste, hear and see)
for an example (using the 5 senses observations): I observed a lollipop. My observations are, it smelled like a cherry, it tasted like cherry, it was red, it felt sticky, and it did not make a sound.
For an example of watching: I watched the pendulum rock from side to side with the weights on it.
Anyway, an observation is mostly the way you look at something and watch what is taking place.
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