mixing spices for the sauce slicing pepperoni for the topping spreading cheese on the pizza baking the dough to form the crust
I gave my students this multiple choice question: In making a pizza, which process involves a chemical change?

Only one answer is correct among these 4 choices:
- mixing spices for the sauce
- slicing pepperoni for the topping
- spreading cheese on the pizza
- baking the dough to form the crust

Could you tell me which one is correct?

baking the dough to form the crust