The aim of this study is to investigate the relationship between high school students' understanding of carbon compounds, including their transformations, and their ability to trace matter in the carbon cycle. The rationale of this study is based on the hypothesis that the students' lack of knowledge about carbon compounds and their…

Parasites evoke an array of emotions that subsequently can govern our action as well as our precautionary measures. If parasites are unknown, an important question is how people can be educated about this parasite. Bedbugs are blood-sucking human parasites that (i) stigmatise hosts, (ii) are hardly correctly identified by people in the western…

This study investigates students' conceptions of the carbon cycle with regard to the components they believe to be relevant to the carbon cycle, how they interrelate these components, the ways in which they trace carbon atoms, and the different levels of biological organisation they consider when doing so. A total of 142 students aged 13-16 years…