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Optional Soil Moisture Sensor Protocol DLESE Reviewed Collection
The purpose of this resource is to measure the water content of soil based on the electrical resistance of soil moisture sensors. Students install soil moisture sensors in holes that are 10 cm, 30 cm, 60 cm, and 90 cm deep. They take daily readings of soil moisture data by connecting a meter to the sensors and using a calibration curve to determine the soil water content at each depth.
Intended for grade levels:
  • Middle (6-8)
  • High (9-12)
Type of resource:
  • For the classroom:
    • Field activity
Subject:
  • Soil science
Technical requirements:
Adobe Acrobat reader
Cost / Copyright:
No cost
For science/educational use consistent with the methodologies of the GLOBE Program.
DLESE Catalog ID: GLOBE-404
Educational standards:
  • National Science Education Standards (NSES):
    • 5-8:
      • Unifying concepts and processes:
        • Change, constancy, and measurement
        • Evidence, models, and explanation
      • A - Science as inquiry:
        • Abilities necessary to do scientific inquiry
        • Understanding about scientific inquiry
      • B - Physical science:
        • Properties and changes of properties in matter
    • 9-12:
      • Unifying concepts and processes:
        • Change, constancy, and measurement
        • Evidence, models, and explanation
      • A - Science as inquiry:
        • Abilities necessary to do scientific inquiry
        • Understandings about scientific inquiry
      • B - Physical science:
        • Chemical reactions
      • D - Earth and space science:
        • Geochemical cycles
  • National Geography Standards:
    • The world in spatial terms:
      • How to use maps and other geographic representations, tools, and technologies to acquire, process, and report information
Resource contact / Creator / Publisher:
Author: University Corporation for Atmospheric Research (UCAR)
The GLOBE Program
http://www.globe.gov/