Write a function scrabble_score() that takes in one parameter, a list of words called words, and returns the score based on the words in the list. All of the words are composed of lowercase letters.

Scoring rules:

Each word is worth 5 points.

Each letter in a word adds 1 additional point to the score, except for the letters "j", "q", and "z", which are are worth 3 points each.