Lesson 1

The definition of Chemistry:

Chemistry is a science, which means its procedures are systematic and reproducible and its hypotheses are tested using the scientific method.

Chemists, scientists who study chemistry, examine the properties and composition of matter and the interactions between substances. Chemistry is closely related to physics and biology. As is true for other sciences, mathematics is an essential tool for the study of chemistry.

Chemistry is a scientific discipline involved with elements and compounds composed of atoms, molecules and ions.

The scope of its subject, chemistry occupies an intermediate position between physics     and biology; it’s sometime called the central science because it provides a foundation for understanding both basic and applies scientific disciplines at a fundamental level, for example:

-          Chemistry explains aspects of plant ( botany)

-          The formation of igneous rocks (geology)

-          The properties of the soil on the moon (astrophysics)

-          How medications work (pharmacology)