This resource has 23 correlations with the National Standards.  
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• Life Science
  • The characteristics of organisms
    • Organisms can survive only in environments in which their needs can be met. (K-4)
  • Populations and ecosystems
    • Biotic parts of an ecosystem include animals, plants, and microorganisms. (5-8)
    • Healthy ecosystems ensure a healthy biosphere by regulating the flow of energy and the cycling of nutrients.
  • Interdependence of organisms
    • Increasingly, humans modify ecosystems as a result of population growth, technology, and consumption. (9-12)
    • An example of habitat destruction is the draining and clearing of wetlands for farms, residential or commercial development. (9-12)

• Earth Science
  • Structure of the earth system
    • Water, which covers the majority of the earth's surface, circulates through the crust, oceans, and atmosphere in what is known as the "water cycle." (5-8)
    • A watershed is entire areas of land that are drained by a river.

• Science as Inquiry
  • Abilities necessary to do scientific inquiry
    • Design and conduct a scientific investigation.
    • Use appropriate tools and techniques to gather, analyze, and interpret data.
    • Develop descriptions, explanations, predictions, and models using evidence.
    • Think critically and logically to make the relationships between evidence and explanations.
    • Communicate scientific procedures and explanations.
  • Understandings about scientific inquiry
    • Scientists use different kinds of investigations depending on the questions they are trying to answer.
    • Types of investigations include describing objects, events, and organisms; classifying them; and doing a fair test (experimenting).
    • Simple instruments, such as magnifiers, thermometers, and rulers, provide more information than scientists obtain using only their senses.
    • Scientists develop explanations using observations (evidence) and what they already know about the world (scientific knowledge). Good explanations are based on evidence from investigations. (K-4)

• Science in Personal and Social Perspectives
  • Natural resources
    • The earth does not have infinite resources. (9-12)
    • Increasing human consumption places severe stress on the natural processes that renew some resources, and it depletes those resources that cannot be renewed. (9-12)
  • Environmental quality
    • A factor that influences environmental quality is poverty. (9-12)
    • Pollutants that cause acid rain may be released in one geographic area and fall to the ground hundreds of miles away. (9-12)
  • Natural and human-induced hazards
    • Pollutants from human activities are released into rivers. (9-12)
    • Change in stream channel position, erosion of bridge foundations, sedimentation in lakes and harbors, coastal erosions, and continuing erosion and wasting of soil and landscapes can all negatively affect society. (9-12)

• Content Standards
  • Quality Teaching
    • Deepens educators’ content knowledge, provides them with research-based instructional strategies to assist students in meeting rigorous academic standards, and prepares them to use various types of classroom assessments appropriately. (NSDC)