The paper presents the results of quantitative research solved by a questionnaire survey in Oulu, Finland and Prague. A total of 195 ninth graders from Prague and 178 ninth graders from Oulu took part in the survey.
Results show that biology is significantly more popular with Finnish students than with Czech ones. The effect of some biology topics on students' interest in biology was also examined.
According to statistical results, all topics contributed more to the interest of Finnish students in biology than to the interest of Czech students. Students enjoy biology the most thanks to the theme of the human body.
Topics concerning ecology enhance students' interest in biology the least.