Question: Base your answer on the information below and on your knowledge of science. A baseball strikes the roof of a car and dents it. The paint on the roof begins to crack and chip, exposing the metal. The exposed metal on the roof rusts, eventually causing a small hole in the roof. Which event is a chemical change?
Choices:
The baseball strikes the roof.
The roof of the car dents.
The paint cracks and chips.
The exposed metal rusts.
Answer: 4