Two times (3 hours) a week, this experimental course is given two semesters in each year. The course is conducted initially from the operations of sterilization and smearing of microorganisms. The students are instructed to facilitate the tests for identification of bacteria to genus levels, and the basic techniques of microbiological tests. In first semester, students will practice to cultivate, observe, and carry out some biochemical tests. In second semester, they will examine bacteria associated with food sanitation, and microorganisms in seawater.