Water Quality Indicators

Front

What condition can lead to the death of large numbers of fish in a lake?

Back

When the water's dissolved oxygen is low and temperature is high.

Tags

NGSS.MS-LS2-4

Front

What are indicators of healthy water systems?

Back

Low temperatures, high dissolved oxygen, and neutral pH.

Front

What pollutant is commonly associated with sewage?

Back

Nitrates.

Front

What is the pH range of healthy water?

Back

6.5-8.5.

Tags

NGSS.MS-PS1-2

Front

What does a few number of bio-indicator organisms in one place indicate about water quality?

Back

Poor water quality.

Tags

NGSS.MS-LS1-5

Front

What is dissolved oxygen?

Back

Oxygen that is present in water, essential for aquatic life.

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-4

Front

Why is high dissolved oxygen important for aquatic ecosystems?

Back

It supports the survival of fish and other aquatic organisms.

Tags

NGSS.MS-LS2-4

Front

What is the effect of high temperatures on water quality?

Back

It can decrease dissolved oxygen levels, harming aquatic life.

Tags

NGSS.MS-LS2-4

Front

What does pH measure in water?

Back

The acidity or alkalinity of the water.

Front

What is the significance of nitrates in water?

Back

High levels can indicate pollution and lead to algal blooms.

Tags

NGSS.MS-LS2-5