Curated OER
Dispose of Waste Properly
Students explore biology by participating in an environmental role-play activity. In this animal waste lesson plan, students identify the appropriate way to dispose of human and animal waste when staying outdoors. Students conduct an...
University of Southern California
Usc Viterbi School of Engineering:illumin: Worthy of Praise: Modern Flush Toilet
Article discussing the history of the modern flush toilet and the under-appreciated impact it has had on modern civilizations. Includes an animation showing how a flush toilet works.