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For an experiment of some practical value, try Epsom salt solution usplus soapy water. Explain that the Epsom salt contains magnesium which is a source of water hardness and show what happens when you add the "hard water" to the soapy solution. Ewww! Now students will know why water softening is important.

For an experiment of some practical value, try Epsom salt solution us soapy water. Explain that the Epsom salt contains magnesium which is a source of water hardness and show what happens when you add the "hard water" to the soapy solution. Ewww! Now students will know why water softening is important.

For an experiment of some practical value, try Epsom salt solution plus soapy water. Explain that the Epsom salt contains magnesium which is a source of water hardness and show what happens when you add the "hard water" to the soapy solution. Ewww! Now students will know why water softening is important.

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For an experiment of some practical value, try Epsom salt solution us soapy water. Explain that the Epsom salt contains magnesium which is a source of water hardness and show what happens when you add the "hard water" to the soapy solution. Ewww! Now students will know why water softening is important.