Texas Renewable Energy Resource Assessment - Geothermal Chapter - This is a color pdf from the 1995 report done by Virtus Energy Research Associates (18mb pdf; right click on title to "Save Target As" rather than open, for faster download.)
Texas Fact Sheet.
The National
Geothermal Education Office (K-12
information for students and teachers) - a great online resource, plus they
will send you materials for a classroom. The following materials are a
sample of what they have to offer.
Download a Geothermal Curriculum for grades 4- 8.
