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Tapwater Hardness Lab


Measure the hardness of a known sample and demonstrate the aesthetic effects of drinking water.

CLASSROOM STUDIES SERIES by LaMotte.  Designed to reinforce key concepts introduced in lecture materials on drinking water treatment and water and soil environmental studies. Teacher manual includes tips on organizing the lab demonstration, introductory information on each test factor, and suggestions for additional experiments.  Grade 5-8.

  • teacher manual
  • introductory information
  • student procedures/data sheets (to reproduce)
  • lesson plans included
  • apparatus and reagents for 5 teams to preform 5 demonstrations each, or a total of 25 deomnstrations
  • soil samples for all soil units
  • reagent composition information
  • reagent refills available

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