Don't go to the lab without it! INTRODUCTION TO CHEMICAL PRINCIPLES: A LABORATORY APPROACH, 7e, INTERNATIONAL EDITION teaches you to collect and analyze experimental data with ease using 36 class-tested experiments. Work Pages and Report Sheets for each experiment offer a convenient and efficient way for you to record your data as you work. Advance Study Assignments, Sample Calculations, and laboratory and safety procedures are just a few of the tools that will help you complete your lab experiments successfully.