8.E.1.3 -- Earth's Water Quality

Predict the safety and potability of water supplies in North Carolina based on physical and biological factors, including:  Temperature  Dissolved oxygen  pH  Nitrates and Phosphates  Turbidity  Bio-indicators

Students Need to Know

... that the health of a water system is determined by the balance between physical, chemical and biological variables.
... that the temperature of water in rivers and lakes determines the kinds of organisms that can survive there.
... that measuring dissolved oxygen is an important factor in determining water quality.
... that pH is a measure on a scale of how acidic or basic water is.
... that nitrogen and phosphorus are essential plant nutrients, but to much can be problematic.
... that turbidity is a measure of how clear water is.
... that the water quality of a body of water can also be assessed by using bioindicators (macroinvertebrates).

8.E.1.3 -- Earth's Water Quality

Students Need to Know

Water Quality Resources