viii Features of the Textbook Cautions alert you to practices that could u ld potentially damage equipment or instruments. st me Safety Notes alert you to potentially dangerous m ma terials ri and practices. Notes highlight key points related to the cont n te nt. Features ur are student-focused learning tools designed d to o help h you get the most out of your studies. This visual v guide highlights the features designed for the te t ex tbook. Chapter Outline previews the topics to o b be learned in the chapter. Objectives clearly identify y the th knowledge and skills to be obtained when the e c ch apter is completed. Technical Terms list the key terms to be learned in the chapter.