Eutrophication

Which nutrients are primarily responsible for eutrophication?

• Phosphorus and nitrogen

• Carbon and oxygen

• Hydrogen and helium

• Sulfur and potassium

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NGSS.MS-LS2-3

Why do aquatic organisms such as fish die in areas experiencing eutrophication?

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Using 3 – 4 complete sentences, summarize the process of eutrophication in your own words.

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What are two nutrients that can lead to eutrophication? ________________________ and ________________________

What happens when these organisms take in an excess of phosphorus and nitrogen?

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Eutrophication is

• too few nutrients in a body of water.

• too many nutrients in a body of water.

• high acid levels in a body of water.

• high alkalinity levels in a body of water.

Chemicals that contribute to eutrophication include... (pick all that apply)

• dissolved Oxygen.

• phosphates.

• nitrates.

• sulfuric acid.

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NGSS.MS-LS2-3

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When nutrient levels rise to high levels in a body of water, the effect on dissolved Oxygen levels is...

• decreases.

• increases.

• does not change.

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Nutrients cause what effect in our creeks and rivers?

• limestone to disappear.

• dissolved Oxygen levels to rise.

• algae to grow more rapidly.

• bacteria populations to decrease.

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NGSS.MS-LS1-5

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A good phosphate reading for the health in the creek would be ...

• high parts per million.

• low parts per million.

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