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This video demonstrates the process you would use to determine the Alkalinity of river water using a LaMotte kit 4491-DR-01. Alkalinity is the measure of the capability of water to neutralize acid.…

From  krbates on August 19th, 2020 0 likes 2 plays

ARTHUR: No Internet?!

The Internet is out at the Read house! With the Internet gone and nothing to do, how will Arthur, Buster, Muffy, and Ladonna spend their day? Watch full episodes of ARTHUR weekdays on PBS KIDS…

From  adrianeellis on January 30th, 2020 0 likes 13 plays