The American Geosciences Institute (AGI) has produced high-quality educational materials for decades, and its website is a great resource for teachers working in the physical sciences. On the site, visitors can take...

This module from the Northwest Center for Sustainable Resources (NCSR) "provides information, both historical and contemporary, insights, and ideals about American Indians and natural resources in various contexts." The...

The American Mathematical Society (AMS) was founded in 1888 in order to further mathematical research and scholarship. Since that time, they have embarked on a number of outreach programs designed to educate the public...

The United States gets over half of its electricity from burning coal, and this tremendously important resource remains one of the nation's greatest assets. However, it is not an asset without problems, as the burning of...

This case study considers the problems that would arise if one were to cross over into a mirror-image environment. The case looks into the lock-and-key theory of enzyme action. This material would be most useful in...