The role of rivers and streams in the environment is the topic in this episode from the Bill Nye the Science Guy series. Bill Nye reveals how and where rivers begin, and where they eventually end up. He shows how they can support a variety of wildlife, including salmon and other fish, but that they have a destructive side too, eroding soil and flooding the land. Nye inserts his usual trademark humor and parody into the scientific discussion to create a fun learning atmosphere.
Disney Educational - Bill Nye The Science Guy: Rivers and Streams