Curated OER
Particulate Matter: The Lorax
Students explore air pollution. In this ecology lesson, students participate in an experiment in which 5 numbered jar lids are placed outside. Students bring one lid a day in until all jars are inside. Dirt specks are counted, observed,...
Hofstra University
Hofstra Univ: Why Was Bubonic Plague So Devastating to European Society? [Pdf]
The Bubonic Plague or "Black Death" came out of the eastern Mediterranean along shipping routes, reaching Italy in the spring of 1348. By the time the epidemic was abating in 1351, between 25% and 50% of Europe's population had died. The...