Encyclopedia of Earth
Encyclopedia of Earth: Biogeochemistry: Phosphorus Cycle
Article explaining what the phosphorus cycle is, where it occurs, its place in the biotic world, and the environmental impact of human activities on the phosphorus cycle. (Published: October 8, 2009)
Ducksters
Ducksters: Chemistry for Kids: Elements: Phosphorus
This site includes information about phosphorus's atomic weight, atom, uses, sources, name, and discovery. Plus properties and characteristics of phosphorus are discussed.
Precision Nutrition
Encyclopedia of Food: Phosphorus
Find out how humans can acquire phosphorus and why it is important to the body.
Society for Science and the Public
Science News for Students: Like Poison for Phosphorus
Discusses a research study undertaken at Mono Lake in California, known for its extreme salty conditions, which supports unusual life forms. Scientists found that a bacterium could survive using arsenic instead of phosphorus,...
Ohio State University
Ohio State University: Concepts of Plant Ecology
An advanced discussion of plant interactions and relationships. Energy flow, nutrient cycling and succession are discussed. Try the quiz to check your understanding.
Other
Marietta College: Ecosystems
Complete illustrated discussion of energy flow within ecosystems, including discussions of trophic levels, ecological pyramids, food chains and webs, biological magnification, and cycles.
US Geological Survey
Usgs: Water Science for Schools Pesticides Ground Water
This US Geological Survey site briefly discusses the basics of why pesticides are increasingly found in our ground water. Click Home to access the site in Spanish.
Science Struck
Science Struck: Ground State vs. Excited State of an Atom
Explains what Bohr's model of the atom is, the characteristics of the ground and excited states of an atom, and the electron configuration for each in the example of Phosphorus.
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