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Limiting Factors in Ecosystems DLESE Reviewed Collection
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:
    • Module / Unit
Subject:
  • Agricultural science
  • Biology
  • Climatology
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