The Water Below
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Explains that underground water creates geological features such as caves, sinkholes, geysers and hot springs. Demonstrates the operation of wells that bring ground water to the surface.
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Sources
- A-V Online (National Information Center for Educational Media). CD-ROM database of educational and documentary media, compiled and maintained by the National Information Center for Educational Media (NICEM). — title, year, creator, length, format, sound, description
- 16mm Filmography (legacy record) — creator, catalog record
Original permalink · Record added 2023-02-27 05:37:41