Have you ever heard the expression “like water off of a duck’s back”? What does this mean? What will happen if a duck lands in oil? How can the natural oils on the duck's feathers be restored?
Discussion: "Matter cycles, what about energy?"
Aquatic Food chain/web computer activity
Energy pyramid scenarios
What is the difference between recycling of matter by society and the natural cycling of matter through ecosystems?
"How Wolves Change Rivers" video: http://blog.ted.com/video-how-wolves-can-alter-the-course-of-rivers/
Water Quality, what can be found in water?