Question

What are the methods of classification of changes?

Answer 1

In nature, substances undergo different changes. There are mainly two types of changes.

Physical change and Chemical change. Boiling of water, Ice melting to water are kinds of physical changes.

In a physical change, the internal structure remains the same.

Chemical changes are mainly chemicals reacting to change the internal structure of the molecules.

Color change or ripening of fruits, etc. are examples of chemical changes.