Matter

This topic emphasizes the characteristics of molecules. It states that elements are the building blocks of matter. It further defines elements, atoms, and molecules. We will learn that a molecule is made up of two or more atoms.

In this topic, we will study the different states of matter. It includes the solid state, the liquid state and the gaseous state. States of matter are explained with examples from daily life and activities. Questions are given for self-analysis.

In this topic, we will learn the processes involved in changing the state of matter from one form to another. It also explains the melting point, boiling point, latent heat and its type with the help of graphs and illustrations.

This topic explains the kinetic theory of matter. We will study the main postulates of this theory regarding the motion of the particles. We also learn that the kinetic theory explains the difference between the three states of matter.

In this topic, we will study the change of a liquid into vapours at any temperature. It enlists the factors affecting evaporation. Cooling caused by evaporation is also explained with the aid of examples and activities.