Just like groups of people have major things in common, so do different materials. So how does that work? How can we group materials by their properties? Find out by watching this video. [4:31]

This lesson will introduce the systematic classification of matter used in chemistry, defining the terms heterogeneous, homogeneous, pure substance, mixture, compound, element and providing examples.

This lesson will introduce chemistry as the science that studies matter: its classification, structure, properties and changes.