Pick from:
(A). motility
(B). molecular make-up
(C). molecules
(D). elements contained
(E). Weight
(F). energy
(G). size
(H). density
Q: You are presented with the quiz "What property of a substance changes when it is frozen?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "when water freezes , that water expands" and "water density is determined by temperature". So, what's the best answer to the question?
A:
(H).