Riverwood Middle School 8th Grade Science Mrs. McAven

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Presentation transcript:

Riverwood Middle School 8th Grade Science Mrs. McAven Water Quality Booklet Riverwood Middle School 8th Grade Science Mrs. McAven

Point & Non-point Source Pollution (Color, Sediments & Hardness) Water Quality Booklet Point & Non-point Source Pollution pH Temperature Dissolved Oxygen Phosphates & Nitrates Bio-indicators Turbidity (Color, Sediments & Hardness)

Point & Non-point Source Pollution Create a Venn diagram that compares and differentiates between point and nonpoint source pollutions. Make sure your Venn has 2 similarities and at least 4 differences on each side.

pH What is it? Why is it important? Acceptable level/conditions What causes water to become too acidic? Why? What causes water to become too basic (alkaline)? Why? How does the pH level of a body of water influence what organisms live there?

Temperature What is it? Why is it important? Acceptable level/conditions Explain 3 other indicators that are affected by temperature. Why is colder water generally better for aquatic life?

Dissolved Oxygen What is it? Why is it important? Acceptable level/conditions Does cold water hold more or less dissolved oxygen? Is this good or bad? Explain. What 3 factors can influence dissolved oxygen levels?

Phosphates & Nitrates What is it? Why is it important? Acceptable level/conditions

Bio-indicators What is it? Why is it important? Acceptable level/conditions Give 3 examples of bio-indicators and explain how each one tells us about the health of the environment.

Turbidity Color, Sediments & Hardness What is it? Why is it important? Acceptable level/conditions What are 2 causes of increased turbidity? Explain how dissolved oxygen decreases with increased turbidity. Draw a diagram of 3 samples of water with different turbidities.