Hydrosphere
![Picture](/uploads/1/6/5/3/16533724/199347168.jpg)
Meanders and Helicoidal flow- a long address!
http://images.google.com/imgresimgurl=http://1.bp.blogspot.com/_HTS0iL2pEqg/SX9B79oQmTI/AAAAAAAAACs/pHwithMStrE/s320/helicoidal%2Bflow%2B2.bmp&imgrefurl=http://snippetseamstress.blogspot.com/&usg=__Fj9S7aTn6aZy0NhN7BihiAm5g6w=&h=294&w=320&sz=26&hl=en&&tbnid=MuKGOLMfo
FamkM:&tbnh=108&tbnw=118&prev=/images%3Fq%3Dhelicoidal%2Bflow%26gbv%3D2%26hl%3Den%26sa%3DG
Excellent summary on the global hydrological cycle at
http://geography.about.com/od/physicalgeography/a/hydrologiccycle.htm?nl=1
Here's another one!
http://ga.water.usgs.gov/edu/watercycle.html
Try this to make sure you understand the basics of the GLOBAL Hydrological Cycle
(Closed system)
http://www.mhhe.com/biosci/genbio/tlw3/eBridge/Chp29/animations/ch29/1_water_cycle.swf
Try an online global hydrological cycle keyword test at
http://cgz.e2bn.net/e2bn/leas/c99/schools/cgz/accounts/staff/rchambers/GeoBytes/GCSE%20Revision/Hot%20Potatoes%20GCSE%20Quizzes/Hydrological%20Cycle.Glossary/Hyd_cycle_glossary_select_quiz.htm
http://geobytesgcse.blogspot.com/2006/11/drainage-basin.html
Waterfall explanation
http://geobytesgcse.blogspot.com/2006/11/upper-course-of-river-waterfalls.html
Good explanation of meanders at
http://www.canadiangeographic.ca/landforms/meanders.asp
Gorges, interlocking spurs and meanders at
http://www.cleo.net.uk/resources/index.php?ks=3&cur=10
http://www.georesources.co.uk/darentintro.htm