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Subject Area - 4:
Environment and Ecology
  • Standard Area - 4.1: Ecology
  • Grade Level - 4.1.4: GRADE 4
Standard - 4.1.4.E

Explain that ecosystems change over time due to natural and/ or human influences.

Eligible Content:
4 Total
Assessments
Materials & Resources
  • Assessment Anchor - BIO.B.4

    Ecology
    • Anchor Descriptor - BIO.B.4.1

      Describe ecological levels of organization in the biosphere.
      • Eligible Content - BIO.B.4.1.1 Describe the levels of ecological organization (i.e., organism, population, community, ecosystem, biome, biosphere).
      • Eligible Content - BIO.B.4.1.2 Describe characteristic biotic and abiotic components of aquatic and terrestrial ecosystems.
    • Anchor Descriptor - BIO.B.4.2

      Describe interactions and relationships in an ecosystem.
      • Eligible Content - BIO.B.4.2.1 Describe how energy flows through an ecosystem (e.g., food chains, food webs, energy pyramids).
      • Eligible Content - BIO.B.4.2.2 Describe biotic interactions in an ecosystem (e.g., competition, predation, symbiosis).
      • Eligible Content - BIO.B.4.2.3 Describe how matter recycles through an ecosystem (i.e., water cycle, carbon cycle, oxygen cycle, nitrogen cycle).
      • Eligible Content - BIO.B.4.2.4 Describe how ecosystems change in response to natural and human disturbances (e.g., climate changes, introduction of nonnative species, pollution, fires).
      • Eligible Content - BIO.B.4.2.5 Describe the effects of limiting factors on population dynamics and potential species extinction.
  • Assessment Anchor - S4.A.1

    Reasoning and Analysis
    • Anchor Descriptor - S4.A.1.1 Identify and explain the application of scientific, environmental, or technological knowledge to possible solutions to problems.
      • Eligible Content - S4.A.1.1.1 Distinguish between a scientific fact and an opinion, providing clear explanations that connect observations and results (e.g., a scientific fact can be supported by making observations).
      • Eligible Content - S4.A.1.1.2 Identify and describe examples of common technological changes past to present in the community (e.g., energy production, transportation, communications, agriculture, packaging materials) that have either positive or negative impacts on society or the environment.
        • Alternate Eligible Content - S4.A.1.1.2a Identify common technologies that benefit society.
          Alternate Eligible Content is designed for students assessed using the PA Alternate System of Assessment (PASA). Essentialized Example resources assist teachers in designing instruction that reduces content complexity while maintaining alignment to academic standards.
    • Anchor Descriptor - S4.A.1.3 Recognize and describe change in natural or human-made systems and the possible effects of those changes.
      • Eligible Content - S4.A.1.3.1 Observe and record change by using time and measurement.
        • Alternate Eligible Content - S4.A.1.3.1a Identify changes to objects and living things.
          Alternate Eligible Content is designed for students assessed using the PA Alternate System of Assessment (PASA). Essentialized Example resources assist teachers in designing instruction that reduces content complexity while maintaining alignment to academic standards.
      • Eligible Content - S4.A.1.3.2 Describe relative size, distance, or motion.
      • Eligible Content - S4.A.1.3.3 Observe and describe the change to objects caused by temperature change or light.
      • Eligible Content - S4.A.1.3.4 Explain what happens to a living organism when its food supply, access to water, shelter, or space is changed (e.g., it might die, migrate, change behavior, eat something else).
      • Eligible Content - S4.A.1.3.5 Provide examples, predict, or describe how everyday human activities (e.g., solid waste production, food production and consumption, transportation, water consumption, energy production and use) may change the environment.
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