Question

q 7. which example shows a chemical change to food during digestion? food churning in the stomach food moving through the intestines enzymes breaking down food teeth chewing food

Explanation:

Chemical changes in digestion involve enzymes breaking down complex food molecules into simpler ones, altering their chemical composition. Food churning in the stomach and food moving through the intestines are physical changes related to movement and mechanical breakdown. Teeth chewing food is also a physical - mechanical breakdown. Enzymes breaking down food is a chemical change as new substances are formed.

Answer:

enzymes breaking down food