Electrolysis of Water Kit

Use the materials inside this hands-on water electrolysis kit to separate water (H₂O) into hydrogen gas (H₂) and oxygen gas (O₂)!

Electrolysis of water is the process of H₂O decomposing into H₂ and O₂ in response to an electric current. Water electrolysis experiments provide engaging learning opportunities and physical science activities for middle and high school students.

Use this kit to study the electrolysis of water using sodium sulfate (Na₂SO₄), sodium bicarbonate (NaHO₃), and sodium chloride (NaCl), and different types of chemical reactions.

More Information

• Safety Information (SDS)

This kit contains:

• 2 alligator clips
• 2 electrodes
• 2 test tubes
• 10 splints
• Beaker
• Sodium sulfate

You will also need:

• 6-volt battery
• Matches or lighter
• Sodium bicarbonate (baking soda)
• Sodium chloride (table salt)
• Watch or clock
• Water
• Wax pencil

• NGSS science standards alignment
• HS-PS1-4: Develop a model to illustrate that the release or absorption of energy from a chemical reaction system depends upon the changes to total bond energy.