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Lesson Plan: Properties of Water Science

This lesson plan includes the objectives, prerequisites, and exclusions of the lesson teaching students how to explain the properties of the polar molecule water.


Students will be able to

  • define the term electronegativity,
  • explain how differences in electronegativity result in polar molecules,
  • describe the structure of a water molecule,
  • describe the creation of hydrogen bonds between molecules of water,
  • link the hydrogen bonding that occurs between water molecules to the physical properties of water,
  • describe the effect of water on litmus paper,
  • outline the differences between polar and nonpolar solvents,
  • describe the use of Hofmann’s voltameter in the electrolysis of water.


Students should already be familiar with

  • covalent bonding.


Students will not cover

  • examples of polar molecules outside of HO2, NH3, and HCl,
  • explanations as to why one atom is more electronegative than another,
  • the trend of electronegativity across the periodic table.

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