Jessica Leib
Professor Wilkin
EAS 391E
January 29, 2008
Chapter 2: Environmental Systems: Connections, Cycles,
Flows, & Feedback Loops
Objective #7: How & why do elements such as carbon, nitrogen,
phosphate, & sulfur cycle through ecosystems?
According to the text “Biogeochemical cycling is the elements and
compounds that sustain us, cycled endlessly through living things and
through the environment (Principles of Environmental Science, Cunningham
Pg 40.)”
The Hydrologic cycle is the water cycle and how it is dispersed
throughout our planet. The following activity will help students have a more
hands on view of the hydrologic cycle because they create a small version.
The Carbon cycle is named this because it deals with the element
carbon. Carbon is in every organic molecule and when bonded together with
other elements it provides metabolic energy. The following game will help
students better understand what carbon does for us and its cycle.
Jessica Leib
Professor Wilkin
EAS 391E
January 29, 2008
The Nitrogen cycle has to do with Nitrogen and its importance to all
living things. The following game will help students better understand the
Nitrogen cycle.
The Phosphorus cycle is responsible for a lot of energy-transfer
reactions. Another cycle that goes along with the phosphorus cycle is the
Sulfur cycle. These two cycles stem from the earth.
Jessica Leib
Professor Wilkin
EAS 391E
January 29, 2008