This physical science volume addresses mixtures and solutions and the technology involved with creating and studying them. Readers will learn about the methods that chemistry pioneers used to arrive at an understanding of the nature of mixtures. Readers will learn how to distinguish mixtures from solutions. Historical examples and contemporary examples from the fields of pharmacology and microelectronics will promote interest and understanding. Diagrams and colorful photographs of scientists at work will help make complex scientific concepts easier for elementary readers to understand.