http://app.discoveryeducation.com/player/view?asset
Guid=40408af3-fec1-4eb1-8287-1c8a518665a7&sho
wBreadcrumbs=true

Steam rises from the pool of hot water. The steam then terns a turbine that makes electricity.

How does it work

http://www.treehugger.com/renewable-energy/1-of-australi
aatms-geothermal-power-potential-26000-years-of-energy.
html