A Carbon Hydrogen Nitrogen (CHN) Elemental Analyzer is not commonly found or used in the undergraduate science laboratory curriculum. At Arizona Western College (AWC) though the use of a CHN analyzer and the mass percent data it generates have been incorporated into both the general chemistry and environmental science lab curricula. In this presentation the authors will discuss its use in general chemistry to show the difference in chemical composition of anthracite and bituminous coals and oil shale rock. From the mass percent data students then speculated about the environmental advantages or disadvantages from burning one versus the other two in order to generate electrical power. Also, general chemistry students used CHN data to determine (theoretically) how much ethanol (an alternative liquid fuel) could be produced from the biomass left over after harvesting an acre of wheat. Furthermore, the authors will discuss the use of the CHN analyzer in environmental science research projects related to nitrogen content found in soils, various plant seeds, and protein drinks. If time permits, the authors will discuss CHN activities involving the analysis of pollen and nitrogen incorporation in seed development. The authors gratefully acknowledge the financial support of the National Science Foundation (DUE-0310264, Course Curriculum Laboratory Improvement grant) to purchase the CHN Elemental Analyzer.