Science Web Surf (7th): Cycles of Matter

Part 1: A Decomposer's Part in Cycles of Matter

http://www.pbslearningmedia.org/asset/tdc02_vid_decompose/


Part 2: Carbon Cycle

http://www.windows2universe.org/earth/climate/carbon_cycle.html

Part 3: Nitrogen Cycle

http://www.sites.ext.vt.edu/virtualfarm/flash_mov/nitrogencycleintro.swf

Part 4: Transpiration's Part in Cycles of Matter

http://techalive.mtu.edu/meec/module01/Transpiration.htm