Provides information on the three states of water and the idea that something that changes its state by melting or freezing remains matter.

Summarizes how water changes from a solid to a liquid and back again, and introduces related facts such as that water freezes at thirty-two degrees Fahrenheit a

Presents nine experiments that help demonstrate the properties of matter, focusing on how solids, liquids, and gases differ and how they change with temperature

Presents mathematical models of melting and solidification processes that are the key to the effective performance of latent heat thermal energy storage systems

Introduces the idea that something that changes its state by melting or freezing remains matter, explains how melting effects the molecules that make up matter,