How many points is SKULL worth in Scrabble?

SKULL is worth 9 points in Scrabble.

Is SKULL a valid Scrabble word? Yes — 9 points

Yes, SKULL is a valid Scrabble word worth 9 points.

Yes, SKULL is a valid Words With Friends word worth 12 points.

SKULL is a valid Scrabble US/CAN word worth 9 points:

S₁K₅U₁L₁L₁

SKULL is valid in Scrabble UK (World) —

S₁K₅U₁L₁L₁

SKULL is a valid Words With Friends word worth 12 points:

S₁K₅U₂L₂L₂

You can make 5 words from skull according to the Scrabble US and Canada dictionary.