Two friends are discussing physical and chemical changes. Isabela says that when you eat, it is a physical change because when you chew, the food is only changed into smaller pieces. Mirabel says that when you eat, it is a chemical change because your body digests the food as the chemicals in your body break down the food into energy. Who is right?

Question

a
Both girls are correct
b
Mirabel
c
Isabela
d
Neither girl is correct

Answer 1

Both girls are correct. Eating involves both physical changes (chewing) and chemical changes (digestion).