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The treble and bass staves combined make the grand staff, joined by a bracket.

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Two notes of the same pitch connected by a curved line, called a "tie" which means that they are to be played as a single note with a duration equal to the sum of the individual notes that are tied.

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Each note can be notated in different octaves on the staff. Usually notated by number on octave (ex: C4 is middle C, C5 is the octave above-the third space from the bottom on the staff.

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Eighth, sixteenth and thirty-second notes have a flag at the end of the stem. When two or more flagged notes appear, they are connected by a line at the top/bottom of the stems, called beams.

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Lines added above or below the range of the staff, indicate an extended range from the five lines and four spaces.
Music Notation from Muse Score

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Within one vocal/melody part, the stems point down for notes on the middle line or higher, and up for those below. If the stem points up, the stem should be on the right-hand side of the note, but if it points down, it should be on the left.
Music Notation from Muse Score

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A dotted note is equal to the length of the original note, plus half of its value.
Image from:
https://musictheorysite.wordpress.com/2015/06/16/rhythmic-values-and-compound-metre/

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This diagram shows how each note relates to each other. The notes divide 2:1, each note divides into 2 notes, both of which are half the value of the original note.
Image from:
https://www.essential-music-theory.com/rhythm-tree.html

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Each music note written on the staff has a duration (length). It is the design of the note that tells you its duration, in the same way as the position on the staff tells you the pitch.
Image from: Beth's Notes Music Education & Inspiration

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For the Bass Clef, the spaces are A, C, E, and G, the letters that begin the sentences ALL COWS EAT GRASS. The lines in the bass clef are G, B, D, F, and A, which correspond to GOOD BOYS DO FINE ALWAYS.
Music Notation from Muse Score

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The treble clef spaces correspond to the notes F, A, C, and E. Beginning at the bottom of the staff and going up, the notes spell FACE. Starting at the bottom line and moving up, the notes on the lines of the staff read E, G, B, D, and F, letters that begin the words of the sentence EVERY GOOD BOY DOES FINE.
Music Notation from Muse Score