Utah Education Network
Uen: Nitrogen Cycle Stream Side Science
Students will learn about the nitrogen cycle through discussion and the construction of a diagram.
BiologyWise
Biology Wise: Understanding Nitrogen Cycle With a Diagram
Describes the steps involved in the nitrogen cycle, a critical biogeochemical cycle.
National Earth Science Teachers Association
Windows to the Universe: Biogeochemical Cycles
Biogeochemical cycles happen when individual elements are recycled over and over in different parts of the Earth. Two examples are the Nitrogen Cycle and Carbon Cycle. Read an explanation of biogeochemical cycles and view a diagram of...