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What is phosphorus Slide 2 What do we need phosphorus for? It natural use Formation of bone/ teeth ATP (adenosine triphosphate) Human uses Fertilizers & detergent matches White phosphorus Slide 3 Too much of a good thing? Natural To much phosphorus in people = kidney damage and osteoporosis A lack of phosphorus limits algae growth. High phosphorus fertilizers = ? Slide 4 Artificial eutrophication Slide 5 Weathering versus geologic uplift Weathering: Breakdown of rock into smaller pieces Chemical weathering: acid rain, Lichens Physical weathering: wind, rain, freezing, Slide 6 Geologic uplift The process of building mountains. The earths crust folds up exposing phosphorus rock Slide 7 Parts of the Phosphorus Cycle Phosphorus Flows: The amount of phosphorus that moves in or out of that source (circles) Slide 8 Slide 9 Parts of the Phosphorus Cycle Phosphorus Flows: The amount of phosphorus that moves in or out of that source (circles) Stored Phosphorus: amount of millions of tonnes phosphorus stored in that source (squares) Slide 10 Slide 11 Parts of the Phosphorus Cycle Phosphorus Flows: The amount of phosphorus that moves in or out of that source (circles) Stored Phosphorus: amount of millions of tonnes phosphorus stored in that source (squares) Moving Phosphorus: Shows where the phosphorus is going (arrows)