Satterfield, Dan. Dan's Wild Weather: What causes precipitation; http://www.wildwildweather.com/precipitation.htm
Schmitt, Raymond. The ocean component of the global water cycle; www.agu.org/revgeophys/schmit01/schmit01.html
Wikipedia. Evaporation; http://en.wikipedia.org/wiki/Evaporation
Images
Raindrop: http://www.rainimages.com/
Ocean: http://ehapc.wordpress.com/2009/05/26/congresswoman-yvette-clarke-speaks-out-about-global-warming/
Evaporation:http://library.thinkquest.org/C0126220/environment/evaporation4_e.htm
Precipitation: http://tinkerblue.typepad.com/tinkerblue_the_daily_tink/guiding_and_scouting/ and http://open.salon.com/blog/greg_thomas/2008/11/29/love_rain_or_me
Runoff: http://www.nwas.org/meetings/nwa2006/Broadcast/Kelsch/watersheds/u1_assets.htm
Transpiration: http://www.fijiaquifer.com/transpiration.htm
Videos:
Condensation: http://www.youtube.com/watch?v=E8AvfXar9zs
Water Cycle: http://www.youtube.com/watch?v=5LQ1tbZCQ94
