Water Quality

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What is water quality?

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Water quality refers to the physical, chemical, and biological characteristics of water, which determine its suitability for various uses such as drinking, swimming, and supporting aquatic life.

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NGSS.MS-ESS2-4

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What does pH measure in water?

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pH measures the acidity or basicity of water on a scale from 0 to 14, where 7 is neutral, below 7 is acidic, and above 7 is basic.

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What pH level is considered basic?

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A substance with a pH greater than 7 is considered basic.

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What happens when there are too many nutrients in water?

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Excess nutrients, like nitrates and phosphates, can lead to algal blooms, which decrease oxygen levels in the water and harm aquatic life.

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NGSS.MS-LS2-1

NGSS.MS-LS2-4

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What is an algal bloom?

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An algal bloom is a rapid increase in the population of algae in water, often due to excess nutrients, which can deplete oxygen and harm aquatic ecosystems.

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NGSS.MS-LS2-4

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What is a recharge zone?

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A recharge zone is the area above an aquifer where water infiltrates the ground and replenishes the aquifer.

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NGSS.MS-ESS2-4

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What is the impact of low pH levels in water?

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Low pH levels (acidic water) can harm aquatic life, corrode infrastructure, and affect the water's suitability for drinking.

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NGSS.MS-LS1-5

NGSS.MS-LS2-4

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What are nitrates and phosphates?

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Nitrates and phosphates are nutrients that can promote plant growth but can be harmful in excess, leading to water quality issues.

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NGSS.MS-LS1-5

NGSS.MS-LS2-3

NGSS.MS-LS2-4

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What is the significance of dissolved oxygen in water?

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Dissolved oxygen is crucial for the survival of fish and other aquatic organisms; low levels can lead to dead zones.

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NGSS.MS-LS2-3

NGSS.MS-LS2-4

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What is a dead zone in water bodies?

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A dead zone is an area in a body of water where oxygen levels are so low that aquatic life cannot survive.

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NGSS.MS-LS2-1

NGSS.MS-LS2-3

NGSS.MS-LS2-4