Water Conservation Activities and Resources for Students: This resource from the Arizona Department of Water Resources links to fact sheets, crossword puzzles, games, coloring books, activities, and booklets teachers and parents can use to spark an interest in water conservation.
o The Nitrogen Cycle: Defined. The nitrogen cycle is defined as the pathways for which nitrogen is recycled. As with all elements, nitrogen is constantly combined and uncombined with other elements to form essential and nonessential compounds for life.
The opposite of this process is denitrification, in which organisms use nitrogen nutrients as their energy source and return nitrogen molecules to the atmosphere, completing the cycle. Denitrification also produces some nitrogen byproducts that are atmospheric pollutants.