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Kidz Lab - lemon clock

Stock Code:
FSG3306
Unit:
Each
Price:
$9.00 (ex GST)

Description

Discover the science behind batteries, and make your own working lemon-powered clock. No store-purchased batteries or power points needed, just a lemon!

How does it work?

The copper plates act like the positive electrodes of a battery. They are plated with a metal which is less reactive than zinc. When the copper plates and zinc plates are inserted into the lemon, a chemical reaction takes place. Electrons (extremely small particles with negative charge) move from the zinc plates to the copper plates to form a current, thus activating the LCD watch. The lemon juice helps to conduct electricity. You can replace the lemon with a potato, a grapefruit or use soft drinks and see what effect they have.

          

In Stock