Is making french toast a chemical or physical change?

* New substances are formed: The process of soaking bread in a mixture of eggs and milk, then cooking it, results in the formation of new chemical compounds. The heat causes proteins in the bread and eggs to denature and solidify, while sugars in the bread and milk caramelize. This is a change in the chemical composition of the ingredients.

* Irreversible: You can't easily reverse the process and get back the original bread, egg, and milk. The chemical changes that occur during cooking are permanent.

* Evidence of chemical change: The color, texture, and taste of French toast are distinct from the original ingredients. This is due to the new chemical compounds formed during cooking.

While some might argue that the changes in the bread are mainly physical (like soaking and softening), the chemical changes that occur during cooking are significant enough to classify the process as a chemical change.