Question

Digestion is the process of breaking down food into substances that the can use. Which of the following is a physical change that takes place during digestion?
A- Bite helps break down fast
B- The teeth grind food into smaller pieces
C- Enzymes help break down carbohydrates

Answer 1

C - Enzymes help break down carbohydrates.

Answer 2

Answer:

B- The teeth grind food into smaller pieces

Explanation:

A physical change is a type of change in which the form of matter or substance is altered but not its chemical composition. The size or shape of matter may be changed, but no chemical reaction occurs. Physical changes are majorly a reversible process. The teeth grinding food into smaller pieces affects the size and shape not the chemical composition of the food.