Explains how melting and freezing changes the forms of liquid and solids, what causes melting and freezing, and how water can exist as a liquid, solid, and gas.
An introduction to solids that explains how they are different from liquids and gases, describes how solids can change, and discusses the different forms of matter.
An introduction to liquids that explains how they are different from solids and gases, describes how liquids can change, and discusses the different forms of matter.
An introduction to evaporation that uses simple text, photographs, and illustrations to describe the process, discuss the water cycle, and provide instructions for a science experiment.
An introduction to condensation that uses simple text, photographs, and illustrations to describe when it happens, discuss the water cycle, and provide instructions for a science experiment.