Watch as the Flinn Scientific Staff demonstrates the Hoffman Electrolysis Demonstration Apparatus. To view more See It In Action videos by Flinn Scientific visit us at http://www.flinnsci.com/teacher-resources/teacher-resource-videos/see-it-in-action-videos/
ATTENTION: This demonstration is intended for and should only be performed by certified science instructors in a safe laboratory/classroom setting.
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In this video we will test samples of water for water hardness. This is experiment OC30 in the Junior Cert Science Syllabus.
Water hardness is caused by the presence of calcium and magnesium ions in the water. Hard water will not lather (form bubbles) easily when mixed with soap but soft water will.
If you have any questions please leave a comment and I will get back to you as soon as possible.
Teacher: Patrick Maye
Kevin MacLeod - Who Likes to Party?
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