YouTube clip explaining USDA organic certification levels (100%, 95%, etc.) This is one of a series of videos addressing issues related to organic food (irradiated food, conventional processing, etc.)
Dr. John Swartzberg, head of the Wellness Letter Editorial Board, explains how organic food is better for the environment, but not necessarily your health
This video is specific to how Google's search works, and helps students differentiate between Google search results and the ads that appear on the same page.
How Search Works: