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Limiting Factors in Ecosystems DLESE Reviewed Collection
http://www.globe.gov/tctg/earth_la_seaphen_p7.pdf?sectionId=267
From Digital Water Ed Library (DWEL)
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This unit, designed to span two class periods, helps students understand that physical factors, particularly temperature and precipitation, limit the growth of plant ecosystems. The activity begins with a discussion in which students develop their own ideas about the role of temperature, precipitation, and environment on plant growth. They will then examine X-Y graphs of vegetation growth, temperature, and precipitation versus month for four diverse ecosystems to determine which climatic factor is limiting growth. A worksheet and scoring rubric are provided.
Intended for grade levels:
  • Middle (6-8)
  • High (9-12)
Type of resource:
  • For the classroom:
    • Classroom activity
    • Module / Unit
Subject:
  • Agricultural science
  • Biology
  • Climatology
  • Environmental science
Technical requirements:
Adobe Acrobat reader
Cost / Copyright:
No cost
Copyright 2003, Global Learning and Observations to Benefit the Environment (GLOBE).
DLESE Catalog ID: DWEL-000-000-000-490
Educational standards:
  • National Science Education Standards (NSES):
    • 5-8:
      • A - Science as inquiry:
        • Abilities necessary to do scientific inquiry
    • 9-12:
      • A - Science as inquiry:
        • Abilities necessary to do scientific inquiry
      • D - Earth and space science:
        • Energy in the earth system
Resource contact / Creator / Publisher:
Publisher: Global Learning and Observations to Benefit the Environment (GLOBE)
http://www.globe.gov/globe_flash.html