QUARKS is a playable word

quark Scrabble® Dictionary

noun
pl. quarks
a hypothetical atomic particle
27 Playable Words can be made from "QUARKS"
   2-Letter Words (4 found)
   3-Letter Words (11 found)
   4-Letter Words (8 found)
   5-Letter Words (2 found)
   6-Letter Words (2 found)