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Four Features, Three Lakes

CSEF · 2004 Earth Sciences/ Planetary Sciences/ Physical Environments

Marcie Brendlen, Esther Viera · Anderson Valley Junior/Senior High School, Boonville

Overview

Objectives/Goals The objective is to determine if hardness in water correlates to nitrogen, phosphorus, and potassium in soil in three Northern California lakes. Methods/Materials We collected water from Lake Mendocino, Clear Lake, and Blue Lake and used CaCo3 strips to test for hardness. We gathered soil from the banks of the three lakes to test for nitrogen, phosphorus, and potassium testing kits. Results We discovered that of the three lakes Blue Lake was the hardest, although all of the lakes tested highest for hardness in the water. All of the lakes had high levels of potassium, medium levels of phosphorus, and depleted levels of nitrogen. Conclusions/Discussion Our results are inconclusive regarding a correlation between the nutrient content of soil with the hardness of the water in three Northern California lakes. There may be a negative correlation between nitrogen in soil and hardness in water, but more research must be done.

Summary statement

My project explores whether hardness in water correlates with three major elements in soil.

Help received

Our teacher edited our papers and my dad drove us to the three lakes.

Competition history

  • CSEF 2004 Earth Sciences/ Planetary Sciences/ Physical Environments · Entry S0602

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