PCS Home
Library Home
Science
Science 10
How Introduced Species Affect Ecosystems on Prezi
How Humans Influence Ecosystems on Prezi
How Changes Occur Naturally in Ecosystems on Prezi
Energy Flow and Nutrient Cycles on Prezi
Nutrient Cycle in Ecosystems on Prezi
Effects of Bioaccumulation on the Ecosystem on Prezi
Biomes on Prezi
Ecosystems on Prezi
This is the path to take you to some excellent resources on the Nitrogen and phorphorus cycles: (click on the link probably won't work):
http://www.proquestk12.com/
ELibrary Science
For some info on the lesser known Potassium Cycle try these sites:
Plant Potassium Cycle
http://www.rossway.net/potassium.htm
International Plant Institute
http://www.ipni.net/ppiweb/ppibase.nsf/$webindex/article=1E9EDEC7852569B5005CED251DABAB79