In this chapter, you will learn the true meaning of temperature and how it is measured. You will learn various processes where heat travels. As you progress, you will discover why metal makers burn the metal ring before inserting it into the wooden wheelbarrow wheel and why the air on the seashore tends to bounce back to where the sunsets. What happens when water boils or freezes? You will learn why its temperature does not change during these processes even though intense heat flows in or out of it.