Answer:
A. Physical Change
Explanation:
Physical change is a type of change in which no new substance is formed, change of state can occur, the appearance of matter can be altered but not its chemical component.
Molten steel being poured into molds to make car parts and then allowed to cool and harden is an example of Physical change because;
- A change of state only occured from molten steel to solid steel.
- No new substance is formed.
