Read the questions first. Then answer them while watching this episode of "Earth Revealed". If you miss it in class you are still responsible for the viewing this segment and answering the questions. The video is available online at http://www.learner.org/vod/video.html?sid=78&po=22 . The index for these programs is online at http://www.learner.org/resources/series78.html# . If you do not have an internet connection at home, view it after school or during study hall in the media center. Each segment is 30 minutes long.
Teacher's note:In most cases, I feel that the Earth Revealed series does an excellent job of describing the topic covered by the episode. However, it is my opinion that they have somewhat missed the point about "deserts." First is in the definition of the term. The popular impression of a desert is a place which is hot and dry. However, even by their own admission, a desert is classified by the absence of water, and has nothing to do with temperature. Therefore, Antarctica and Point Barrow can be considered deserts, just as easily as the Mojave or Sahara. A desert is dry, no matter where it is located.