Science education is criticized because it often fails to support problem-solving skills in students. Instead, the instructional methods primarily emphasize didactic models that fail to engage students and reveal how the material can be applied to solve real problems. To overcome these limitations, this study asked participants in a general…

An environmental research project was carried out by a consortium established among scientists and university lecturers in collaboration with two high schools. High school students participated in a long-term study of the local temporal profiles of tropospheric ozone and the relationship to pollution and meteorological parameters. Low-cost…

An electrochemical experiment is presented to illustrate biosorption to second-year and upper-division undergraduate students. The extraction of Cd[superscript 2+], Pb[superscript 2+], and Cu[superscript 2+] by nonliving "Typha latifolia" (cattail) roots can be monitored in real time by potentiometry determinations. The open circuit potential…

An experiment is conducted to promote biotechnology knowledge that is an emerging technology on cleaning treatment, showing the potential of seaweed to remove heavy-metal ions from solution. The rapid and accurate determination of zinc in aqueous solution by the zincon colorimetric method gives an interesting and simple experiment for any…

The human dimensions of greenhouse gas emissions and global warming attract considerable attention in macrosociology. However, cross-national analyses generally neglect greenhouse gases other than carbon dioxide. The current study addresses this paucity through the testing of theoretically derived models for the social structural causes of the…

We present a laboratory practice aimed to clarify and discuss the concept of bioindicator molecules in environmental health. It has been implemented as a hands-on laboratory exercise in postgraduate courses in public health (in Brazil) and in a course entitled Biology Applied to Natural Resources Sustainability (in Spain) but can be useful for…

Community-based participatory research (CBPR) increasingly is being used to study and address environmental justice. This article presents the results of a cross-site case study of four CBPR partnerships in the United States that researched environmental health problems and worked to educate legislators and promote relevant public policy. The…