Presents an introduction to the concept of area, in simple text with illustrations, explaining what it is, how it is measured, on land and in the water, as well as explanations of different shapes.

Describes how height and altitude are measured, explains the differences in height measurement scales, and how altitude is used in everyday measurement.

Describes the different ways to measure temperature, including the different types of thermometers, the different temperatures scales, and explains how temperature measurements are used to identify body heat and weather.

Defines volume and describes how it is measured.