Appropriate for Grades 6-12 Follow the path of water as it evaporates from the vast surfaces of the oceans, condenses as clouds from invisible water vapor, is released as rain and snow, and finally runs off the Earth's surface in streams and rivers. Includes teacher's guide and glossary. This contemporary look at the hydrologic cycle combines full motion video and colorful computer graphics to create an engaging presentation of the functions of water on this planet. Available on VHS or DVD, 20 minutes.