In a study conducted by TÇV (1995), it was found the primary environmental problems in Turkey are air and soil pollution and in the present study, the pre-service science teachers think that air pollution, one of the serious problems of the world, also negatively affects Turkey and moreover, unplanned urbanization and water pollution which is on the agenda in recent years are among the serious environmental problems of Turkey. Air pollution is a general environmental problem and the participants didn’t define problems which are within air pollution. The finding of the present study concurs with those of Y