Question

An engineer pours hot, liquid metal into a mold. As it cools, it takes the form of a solid beam.



In the process described above, what is the evidence that a physical change occurred?

I. The liquid metal cooled to form a solid.
II. The shape of the metal changed.
III. The metal changed into new substances.
A.
III only
B.
I, II, and III
C.
II only
D.
I and II only

Answer 1

d, l and ll only

Answer 2

hope that helps

Answer 3

ok thx

Answer 4

thx it was right

Answer 5

:)