Here's why:

* Observation: The act of noticing or perceiving something using your senses (sight, hearing, touch, smell, taste).

* Fact: Something that is true and can be proven.

Example:

You see a red apple on a table. This is an observation because you used your sense of sight. It can also be considered a fact because it can be verified by others.

However, it's important to note that observations can be subjective and may be influenced by individual experiences and biases.