What is chemical modification? Is egg cooking a chemical change?
There are changes around us such as sugar dissolving in water, the lake freezing in winter etc. One change is what chemistry scientists call chemical reactions, and others are not. Chemical changes occur when new products are made that are different from what we started with.
Cooking eggs, for example, are an example of a chemical change; egg white and egg yolk change from liquid to solid. Heat makes the egg protein stronger.