Science teacher stress is a topic that has attracted only a few studies in recent years. The itemized scores of 206 respondents to the 40-item Science Teacher Stress Inventory were pooled and ranked. The top six stressors were found in descending order: (1) Difficulty in obtaining equipment and materials for teaching science effectively; (2) Having to cope with teaching traditionally difficult topics; (3) Inability to complete the syllabus on time; (4) Having to teach subjects like general science or integrated science for which they were not trained; (5) Having to cope with the demands of new curricula; and (6) Poor attitude of students toward science lessons. A large proportion of the teachers coped by engaging in positive thinking about the important role of the science teacher, making determined attempts at improvisation, maintaining a healthy attitude toward stressful situations, and sharing ideas and laboratory equipment with colleagues. The differences in stress levels between gender, teaching experience, and subject taught are reported. Some implications for science teaching are discussed. (Author/YP)