earth science
any of various sciences, such as geology, geography, and geomorphology, that are concerned with the structure, age, and other aspects of the earth
www.geologylink.com
www.psigate.ac.uk/newsite/earth-gateway.html
http://personal.cmich.edu/~franc1m/homepage.htm
www.geologynet.com/indexa.htm
www.iers.org/links/geo/
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005
earth science
[′ərth ‚sī·əns] (science and technology)
The science that deals with the earth or any part thereof; includes the disciplines of geology, geography, oceanography, and meteorology, among others.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.