The difference between Heed and Observation

When used as nouns, heed means careful attention, whereas observation means the act of observing, and the fact of being observed.

Heed is also verb with the meaning: to guard, protect.

check bellow for the other definitions of Heed and Observation

Heed as a verb (obsolete):

To guard, protect.
Heed as a verb (transitive):

To mind; to regard with care; to take notice of; to attend to; to observe.
Heed as a verb (intransitive, archaic):

To pay attention, care.

Observation as a noun:

The act of observing, and the fact of being observed.
Observation as a noun:

The act of noting and recording some event; or the record of such noting.
Observation as a noun:

A remark or comment.
Observation as a noun:

A judgement based on observing.
Observation as a noun:

Performance of what is prescribed; adherence in practice; observance.
Observation as a noun:

A regime under which a subject is routinely observed.
Observation as a noun:

Philosophically as: the phenomenal presence of human being existence.