Food undergoes both physical and chemical changes during digestion. Which of the parts of the digestive process listed below is a physical change that takes place in the mouth? enzymes break down starch into simple sugars

chewing breaks food into smaller pieces.
HELP!

1) chewing breaks food into smaller pieces.

Explanation:

Chewing food changes the PHYSICAL appearance. The sugars in the other possible answer will completely change the composition of the food. So therefore, chewing breaks food into smaller pieces, is correct.

we can conclude that the melting point of table salt is above room temperature (it's actually 801 deg c). the melting point of mercury must be below room temperature (- 39 deg c).