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Salinization
http://www.enviroliteracy.org/article.php/1179.html
From DLESE Community Collection (DCC)
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In this activity students work as a team to determine the effect salt has on plant germination. They then use their lab data to create a report on how the increasing salt concentrations affected the germination of the seeds and at what salt concentration no seeds will germinate. Students will discover that salt buildup is an existing or potential hazard on almost all of the 42 million acres of irrigated farmland in the United States. Much of the world's unused land is in arid and semiarid regions where irrigation will be necessary. Water contains a small amount of salt and over time this salt accumulates in the soil. This activity has an accompanying teacher site with hints and more information.
Intended for grade levels:
  • Intermediate (3-5)
  • Middle (6-8)
  • High (9-12)
Type of resource:
  • For the classroom:
    • Lab activity
Subject:
  • Agricultural science
  • Soil science
Technical requirements:
No specific technical requirements, just a browser required
Cost / Copyright:
No cost
Copyright College Entrance Examination Board. All rights reserved. All Rights Reserved Copyright 2002 The Environmental Literacy Council.
DLESE Catalog ID: DLESE-000-000-007-437
Educational standards:
  • National Science Education Standards (NSES):
    • K-4:
      • A - Science as inquiry:
        • Abilities necessary to do scientific inquiry
      • C - Life science:
        • Organisms and environments
      • F - Science in personal / social perspectives:
        • Changes in environments
    • 5-8:
      • A - Science as inquiry:
        • Abilities necessary to do scientific inquiry
      • C - Life science:
        • Structure and function in living systems
      • F - Science in personal / social perspectives:
        • Populations, resources, environments
    • 9-12:
      • F - Science in personal / social perspectives:
        • Environmental quality
        • Natural and human-induced hazards
        • Natural resources
Related resources:
This resource is part of 'Environmental Literary Council'
http://www.enviroliteracy.org/index.php
Resource contact / Creator / Publisher:
Author: Lonnie Miller
El Diamante High School

Publisher: The Environmental Literacy Council