flow chart vs flow sheet

flow chart and flow sheet both are nouns.

Word	Noun	Adjective	Verb	Adverb
flow chart	Yes	No	No	No
flow sheet	Yes	No	No	No

As nouns, flow chart and flow sheet are synonyms defined as:

flow chart and flow sheet: a diagram of the sequence of operations in a computer program or an accounting system

Other synonyms of flow chart include flow diagram, flowchart.

flow chart (noun)	flow sheet (noun)
a diagram of the sequence of operations in a computer program or an accounting system	a diagram of the sequence of operations in a computer program or an accounting system