Fine arts is two words.
It is two words, fine arts, and would only be capitalized as a course of study or the name of a department.
It is one word.
Its one word
One, it's a compound word.
It is one word.
one word
Schoolchildren, one word.
It is one word
One word. 'Sandstorm.'
It is one word.
one word
It is one word.