The National Center for Case Study Teaching in Science, which is housed at the University of Buffalo, is a National Science Foundation-sponsored, award-winning program that brings together various peer-reviewed case...

The US Environmental Protection Agency (EPA) provides this database of chemical toxicity. Three individual EPA databases are combined to provide information on chemical-specific toxicity values for aquatic and...

The Biology Project from University of Arizona has added this online resource to its already excellent educational page. Here, visitors may learn how chemicals interact with human health using tutorials, problem sets,...