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Science News Links


Can Water Naturally Flow Uphill?

Earth's gravity is strong, but can water ever naturally go against it and flow uphill?
The answer is yes, if the parameters are right. For instance, a wave on a beach can flow uphill, even if it's for just a moment. Water in a siphon can flow uphill too, as can a puddle of water if it's moving up a dry paper towel dipped in it.
Even more curiously Antartica has a river that flows uphill underneath one of its ice sheets. So, how does science explain these upward watery movements? LiveScience.com – 3-27-17

Does hot water really freeze faster than cold water?

Does hot water freeze faster than cold water? It seems obvious that the answer should be no, because all things being equal, hot water takes longer to cool down than cold water, and so it couldn't possible freeze faster. But observations over thousands of years, as well as countless modern experiments, have shown that the opposite is true - under carefully controlled conditions, hot water at times seems to freeze faster than cold water. The phenomenon of hot water freezing faster than cold water is known as the Mpemba effect, named after Erasto Mpemba, a Tanzanian student who in 1963 was making ice cream as part of a school project.  Check out the video!  ScienceAlert.com  2-9-17

Water Definitions and Terminology

  • Glossary of Water Terminology: created by Lenntech Water Treatment & Air Purification Holding B.V.; also available in German, French, Spanish and Dutch.

 

Water Education Resources

  • Ask Dr. Universe All ages. Anything kids want to know about water or any subject.
  • DuluthStreams Stormwater and stream ecology. High School, College, Professionals, Staff, Decision Makers and General Public.
  • Ground Water Adventurers  K-12 The National Ground Water Association reminds you ground water is your friend--and it's fun. . 
  • History of Sewers  5,500 years of worldwide sewer history in photos, articles, timelines and book suggestions. Reading level 12 on up. 
  • Lake Access Real time data. High School, College, Professionals, Staff, Decision Makers and General Public.

 

  • Xeriscape Council of New Mexico: Offers education and training about water conservation, primarily through efficient irrigation of xeriscaping utilizing native and other low-water plants.
 
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