The Electrochemical Clock Oxidation-Reduction Chemical Demonstration Kit is guaranteed to get your students thinking. Hundreds of hypotheses can be investigated. Allow students to design and conduct their own experiments.
Arouse student curiosity. Irwin Talesnick's famous orange juice clock is guaranteed to get your students thinking! How does the clock work? How long will the clock run on orange juice? Can you use something other than orange juice? Hundreds of questions can be asked and investigated. Allow students to design and do their own experiments. Instructions and teaching tips are provided. Materials included can be reused.
Concepts: Electrolysis, oxidation-reduction, anode, cathode.
Time Required: 15 minutes
Materials Provided: A 3-color, 24-hour clock face (Atomic number 1, H, Hydrogen, through to Atomic number 24, Cr, Chromium), complete clock assembly, hook-up wires, electrodes, and orange juice. All you need to provide is a stiff piece of cardboard or wood on which to hang the clock.