8.E.1

Understand the hydrosphere and the impact of humans on local systems and the effects of the hydrosphere on humans.

Essential Understandings:

The students will understand that …

The hydrosphere affects humans and humans affect the hydrosphere.

Essential Questions

  • What is the structure and function of the hydrosphere?
  • How does the hydrosphere affect humans?
  • How do the humans affect the hydrosphere?

8.E.1

Understand the hydrosphere and the impact of humans on local systems and the effects of the hydrosphere on humans.

Essential Understandings:

The students will understand that …

The hydrosphere affects humans and humans affect the hydrosphere.

Essential Questions

  • What is the structure and function of the hydrosphere?
  • How does the hydrosphere affect humans?
  • How do the humans affect the hydrosphere?

8.E.1.3: 

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

Essential Understandings:

The student will understand...

  • 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 of how acidic or basic water is
  • That nitrogen and phosphorus are essential plant nutrients
  • 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 (macro invertebrates

Essential Questions:

  • How safe and drinkable is the water around North Carolina?
  • How are physical and biological factors used to determine the quality of water?

8.E.1.3: 

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

Essential Understandings:

The student will understand…

  • 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 of how acidic or basic water is
  • That nitrogen and phosphorus are essential plant nutrients
  • 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 (macro invertebrates

Essential Questions:

  • How safe and drinkable is the water around North Carolina?
  • How are physical and biological factors used to determine the quality of water?

8.E.1.4:

Conclude that the good health of humans requires:

  • Monitoring of the hydrosphere
  • Water quality standards
  • Methods of water treatment
  • Maintaining safe water quality
  • Stewardship

Essential Understandings:

The students will understand…

  • That water quality is a term used to describe the chemical, physical, and biological characteristics of water
  • That water quality standards outline the water quality pollution control program that is mandated and regulated by local, regional and federal agencies
  • Clear water may contain odorless, tasteless, and colorless harmful contaminants.
  • That water is essential to life.

Essential Questions:

  • What can we do to protect our water supply?

8.E.1.4:

Conclude that the good health of humans requires:

  • Monitoring of the hydrosphere
  • Water quality standards
  • Methods of water treatment
  • Maintaining safe water quality
  • Stewardship

Essential Understandings:

The students will understand…

  • That water quality is a term used to describe the chemical, physical, and biological characteristics of water
  • That water quality standards outline the water quality pollution control program that is mandated and regulated by local, regional and federal agencies
  • Clear water may contain odorless, tasteless, and colorless harmful contaminants.
  • That water is essential to life.

Essential Questions:

  • What can we do to protect our water supply?