Final answer:
Cooking involves both physical and chemical changes. One example is frying eggs, where the heat causes the proteins to denature. Another example is baking bread, which involves both physical and chemical changes.
Step-by-step explanation:
Cooking is a process that involves both physical and chemical changes. One example is frying eggs. When you fry eggs, the heat causes the proteins in the eggs to denature, leading to the formation of a solid substance. This is a chemical change. At the same time, the heat also causes the eggs to cook, which is a physical change as it changes the texture of the eggs.
Another example is baking bread. The process of baking bread involves both physical and chemical changes. The heat in the oven causes the dough to rise, which is a physical change. At the same time, the heat also triggers a series of chemical reactions that result in the browning of the bread crust and the formation of gluten, which is responsible for the bread's texture and structure.