Beyond Benign
Daphnia Bioassay LD50
De-icing materials may have a harmful effect on our environment; have your class perform an experiment to test the nature of these effects. Scholars monitor the survival rate of a sample of daphnia as the concentration of a de-icing...
Arizona State University
Alberto Rios, Arizona State U.: Glossary of Rhymes
This is a very extensive list of rhymes that "Occur frequently in discussions of poetry and critical writing, but not with absolute consistency." All have definitions, and many have examples. They are organized into five categories:...