Explore Shale, a website created by Penn State Public Broadcasting, explains the process of extracting natural gas from the Marcellus shale. The website explains the process in a visual, interactive format: users can...

This lesson summarizes our dependency upon fossil fuels, pointing out that there are very few aspects of our daily life that are not impacted by their use. The discussion centers around whether these fuels could be...

This lesson provides an introduction to the use of coal as an energy source. Topics include the history of coal usage, applications of coal as an energy source, and major suppliers of coal (the United States). There is...