Free Educational Materials! Check out the Aquatic Invasive Species page on our website for access to a children’s YouTube video about Aquatic Invasive Species (AIS) and their effects on our environment. Viewers will learn how to identify four common AIS, how they travel and what harm they cause. In addition to the video, viewers have access to printable "case files" and a brief knowledge quiz afterward. The site includes a classroom guide as well for educators and parents wanting to incorporate this material into their curriculum.