The study consists of 23 state middle schools in the city centre. The urban and rural
sampling of the study on the other hand is composed of 6th, 7th, and 8th grade (age range
12–15) students attending these schools in the first part of the 2008–2009 school years. The
total number of the students included in the sampling was N = 1396, of which 708
Nanotechnology awareness, opinions and risk 871
123
(50.7 %) were girls and 688 (49.3 %) were boys. The average age of the participating
students was 13 years.