Pbs Learning Media: Earth's Systems: What Is Ice?

Learn from NASA scientists about two forms of water (liquid and solid), and about the special properties of ice that are important to Earth's life and climate, in this video (2:35) from NASA eClips. Ice can be found in bodies of water across the planet. In the polar regions, ice that is present all year long affects temperatures and climates throughout the world. Students can use the video to understand different forms of water and to observe and identify ice in a variety of water bodies. An Activity, Background Essay, and Teaching Tips are provided.