They change the state of matter. They create new substances. They change volume. They create energy.
I am hesitating between 4 options to answer the following question, which option should I choose?
Question: Lighting a match and baking a cake are two actions that involve chemical changes. Why are these actions considered chemical changes?
Possibilities:
- They change the state of matter.
- They create new substances.
- They change volume.
- They create energy.

They create new substances.