Electrolysis of Water

This Electrolysis of Water activity & project also includes:

Young scientists know that water is H2O, but can they prove it? Through a simple electrolysis of water demonstration, scholars see the two gases produced as a result of a chemical reaction. Because this reaction doesn't happen spontaneously, you can initiate it by using a battery.

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CCSS: Adaptable
Additional Tags
Instructional Ideas
  • Instead of doing it as a demonstration, let students perform the experiment themselves
  • Use small test tubes to collect the two gases and discuss the ratio difference
Classroom Considerations
  • Relies on prior knowledge of chemical equations
Pros
  • Requires common and economical materials
  • Includes ideal answers to discussion questions
  • Offers a few extension ideas for those who wish to learn more
Cons
  • None
Common Core