Level 4 Opportunity: Visit the following link and read the article. Then, on a separate sheet of paper, answer these questions:
1. What are the five measurements of water quality?
2. How does each measurement help us tell if a pond ecosystem is healthy?
3. If you could only take one measurement to see if a pond was healthy, which measurement would you choose to take? Why?
Water Quality Measurements
Thursday, February 11, 2010
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