a phase change. a cellular change. a physical change. a chemical change.
I am hesitating between 4 options to answer the following question, which option should I choose?
Question: When a person chews, saliva from the mouth mixes with starches in food. These starches begin to turn into sugars. Changing starches into sugars is best described as
Possibilities:
- a phase change.
- a cellular change.
- a physical change.
- a chemical change.

a chemical change.