Electrolysis

Article no. P1375100 | Type: Experiments

grades 7-10
10 Minutes
10 Minutes
medium
Pupils

Principle

The students know that metallic conductors do not change chemically when current passes through them. This experiment should bring them to the realisation, that the chemical composition of a liquid conductor does change when electrical current passes through it.

Benefits

  • No additional cable connections between the building blocks needed - clear arragned and quick setup
  • Contact saftey due to puzzle blocks system
  • Corrosion-free gold plated contacts
  • Doubled earning sucess: Electric circuit diagram on top, real components can be seen unterside

Tasks

Do the chemical properties of a conducting liquid change when current is passing through it?

Conduct electric current through an aqueous solution of sodium sulphate and observe if this thereby changes chemically.

 

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