Groundwater /

Reminds us that approximately three-quarters of Earth's surface is covered by water but most fresh water comes from underground. Topics include aquifers, rock porosity and permeability, artesian wells, the water table, cave formation, sinkholes, and how groundwater may become contaminated.

Bibliographic Details
Corporate Authors:	INTELECOM Intelligent Telecommunications (Firm), Annenberg/CPB
Other Authors:	Sadd, James, Gilfillan, David
Format:	Video
Language:	English
Language Notes:	Closed captioned.
Published:	South Burlington, Vt. : Annenberg/CPB, ©1992.
Series:	Earth revealed ; 21.
Subjects:	Groundwater. Aquifers. Artesian wells. Water table. Caves. Geology, Structural. Geomorphology. Earth sciences. Physical geology. Geology. Geology Eau souterraine. Aquifères. Puits artésiens. Niveau hydrostatique. Géomorphologie. Sciences de la terre. Géologie physique. Géologie. Digital video. Streaming multimedia. Video recordings for the hearing impaired. Vidéos pour personnes handicapées auditives.
Online Access:	Connect to this streaming video (Alexander Street Press)

Description
Summary:	Reminds us that approximately three-quarters of Earth's surface is covered by water but most fresh water comes from underground. Topics include aquifers, rock porosity and permeability, artesian wells, the water table, cave formation, sinkholes, and how groundwater may become contaminated.
Item Description:	Video streaming is available for these titles.
Format:	Mode of access: Windows Media Player, World Wide Web.
Audience:	High school/college. 9-12+