Find a
Select grade level(s) Select resource type(s) Select collection(s) Select standard(s) Skip navigation Digital Library for Earth System Education
Digital Library for Earth System Education
Search tips
Life's Little Essential: Liquid Water (title enhanced by cataloger) DLESE Reviewed Collection
This article discusses the importance of water in supporting and sustaining life and focuses on why water, and solely in its liquid form, is so essential. The focus here is on the potential presence of water on Mars. Some of the physical and chemical properties of water are summarized, and their uniqueness is presented as the reason planetary scientists are on the lookout for water on Mars and elsewhere in the Solar System.
Intended for grade levels:
  • Middle (6-8)
  • High (9-12)
Type of resource:
  • Visual:
    • Photograph
  • Text:
    • Ref. material
  • Biology
  • Hydrology
  • Space science
Technical requirements:
No specific technical requirements, just a browser required
Cost / Copyright:
No cost
1996-2005, WGBH Educational Foundation.
DLESE Catalog ID: DWEL-000-000-000-407
Educational standards:
  • National Science Education Standards (NSES):
    • 5-8:
      • D - Earth and space science:
        • Earth in the solar system
      • F - Science in personal / social perspectives:
        • Populations, resources, environments
    • 9-12:
      • F - Science in personal / social perspectives:
        • Natural resources
Resource contact / Creator / Publisher:
Publisher: NOVA, The Public Broadcasting Service