A social studies unit on flooding in the Midwest along the Mississippi and Missouri river basins. Includes teacher?s guide, video, and print resources. (NOVA Online, 1996, March 26 original b...
Access to 51 studies and summary reports from 1991-2001 on U.S. river basins and aquifers. Choose selected study unit from the drop-down menu.
This free, standards-based, online publication, developed for middle school science teachers, explores geologic time. This publication contains resources designed to do three things. The first is to...
This free, standards-based, online publication, developed for middle school science teachers, explores the water cycle--a series of steps involving changing states of matter through the processes of...
This free, standards-based, online publication, developed for middle school science teachers, explores the polar regions. Children might be interested because of the images they have encountered in...
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