Answer:
accidentals are sharps, flats, and natural signs that are used to raise or lower a note chromatically
accidentals: sharps, flats, and natural signs
a whole note or half note (I don't really understand this question)
the staff
Treble Clef
space notes: F A C E
line notes: E G B D F
Bass Clef
space note: A C E G
line notes: G B D F A
(bottom to top)