Forces hold the particles together which vary in size for solids, liquids and gases. This is called kinetic theory. You walk into a coffee shop and immediately smell coffee. Why? One reason is ...

Students are introduced to the idea that matter is composed of atoms and molecules that are attracted to each other and in constant motion. Students explore the attractions and motion of atoms and ...

Structure of solids and liquids is the study of the physical properties of matter in which there is a non-negligible interaction between the constituent atoms or molecules. While the atoms or ...