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An Essential Mineral
http://www.amnh.org/nationalcenter/youngnaturalistawards/2001/frieda.html
From DLESE Community Collection (DCC)
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This essay with a field journal focus reports on a family vacation to the Dead Sea, where the saltiness of the water made it difficult to keep their feet underwater. The reasons for the salinity level of this sea, along with what scientists do and do not know about why the ocean is so salty is also included in the essay. There is also an overview of the importance of salt to humans and the chemistry of salt. In addition, the author presents the results of her experiment, comparing the evaporation rates of water from the Atlantic Ocean and the Dead Sea. At 1,292 feet (394 meters) below sea level, the Dead Sea is the lowest point on Earth, though it is not the depth, but the sea's saltiness that buoyed the imagination of this seventh-grader from New York.
Intended for grade levels:
  • Middle (6-8)
Type of resource:
  • Text:
    • Ref. material
Subject:
  • Ocean Sciences:
    • Chemical oceanography
Technical requirements:
No specific technical requirements, just a browser required
Cost / Copyright:
No cost
All text, images, and software code on this website are copyright property of the American Museum of Natural History and its programmers unless otherwise noted. They may be used for the personal education of website visitors. They may not be placed in the public domain. Any commercial reproduction, redistribution, publication, or other use by electronic means or otherwise is prohibited unless pursuant to a written license signed by the Museum.
DLESE Catalog ID: DLESE-000-000-005-826
Educational standards:
  • National Science Education Standards (NSES):
    • 5-8:
      • A - Science as inquiry:
        • Abilities necessary to do scientific inquiry
      • B - Physical science:
        • Properties and changes of properties in matter
      • G - History and nature of science:
        • Science as a human endeavor
  • National Geography Standards:
    • Environment and society:
      • How physical systems affect human systems
    • 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:
Publisher: American Museum of Natural History