Here's why:

* Chemistry is the study of matter and its properties as well as how matter changes. This includes the study of:

* Composition: What substances are made of.

* Structure: How atoms and molecules are arranged.

* Properties: How substances behave (e.g., melting point, reactivity).

* Reactions: How substances interact and transform.

While other sciences also deal with change, chemistry is specifically focused on the fundamental changes that occur within matter itself.